611970678 has 24 divisors (see below), whose sum is σ = 1446476616. Its totient is φ = 185445600.

The previous prime is 611970661. The next prime is 611970707. The reversal of 611970678 is 876079116.

It is a super-2 number, since 2×611970678² = 749016221463559368, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1545183 + ... + 1545578.

It is an arithmetic number, because the mean of its divisors is an integer number (60269859).

Almost surely, 2^611970678 is an apocalyptic number.

611970678 is an abundant number, since it is smaller than the sum of its proper divisors (834505938).

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

611970678 is a wasteful number, since it uses less digits than its factorization.

611970678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090780 (or 3090777 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 611970678 is about 24738.0411108075. The cubic root of 611970678 is about 849.0049153365.

The spelling of 611970678 in words is "six hundred eleven million, nine hundred seventy thousand, six hundred seventy-eight".