5642394126 has 32 divisors (see below), whose sum is σ = 11342791680. Its totient is φ = 1871157024.

The previous prime is 5642394119. The next prime is 5642394127. The reversal of 5642394126 is 6214932465.

It is a super-2 number, since 2×5642394126² = 63673222946238607752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642394127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979611 + ... + 985353.

It is an arithmetic number, because the mean of its divisors is an integer number (354462240).

Almost surely, 2^5642394126 is an apocalyptic number.

5642394126 is an abundant number, since it is smaller than the sum of its proper divisors (5700397554).

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

5642394126 is a wasteful number, since it uses less digits than its factorization.

5642394126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560.

The product of its digits is 311040, while the sum is 42.

The square root of 5642394126 is about 75115.8713322291. The cubic root of 5642394126 is about 1780.2779229801.

The spelling of 5642394126 in words is "five billion, six hundred forty-two million, three hundred ninety-four thousand, one hundred twenty-six".