6429213136 has 20 divisors (see below), whose sum is σ = 13189342212. Its totient is φ = 3025511936.

The previous prime is 6429213113. The next prime is 6429213139. The reversal of 6429213136 is 6313129246.

It can be written as a sum of positive squares in 2 ways, for example, as 4694990400 + 1734222736 = 68520^2 + 41644^2 .

It is a super-2 number, since 2×6429213136² = 82669563096229908992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6429213095 and 6429213104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6429213139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11818135 + ... + 11818678.

Almost surely, 2^6429213136 is an apocalyptic number.

It is an amenable number.

6429213136 is an abundant number, since it is smaller than the sum of its proper divisors (6760129076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6429213136 is a wasteful number, since it uses less digits than its factorization.

6429213136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23636838 (or 23636832 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The square root of 6429213136 is about 80182.3742227679. The cubic root of 6429213136 is about 1859.4561496268.

The spelling of 6429213136 in words is "six billion, four hundred twenty-nine million, two hundred thirteen thousand, one hundred thirty-six".