697879427670 has 32 divisors (see below), whose sum is σ = 1861011807840. Its totient is φ = 186101180640.

The previous prime is 697879427657. The next prime is 697879427671. The reversal of 697879427670 is 76724978796.

697879427670 is a `hidden beast` number, since 6 + 9 + 78 + 79 + 427 + 67 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697879427671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1292369041 + ... + 1292369580.

It is an arithmetic number, because the mean of its divisors is an integer number (58156618995).

Almost surely, 2^697879427670 is an apocalyptic number.

697879427670 is an abundant number, since it is smaller than the sum of its proper divisors (1163132380170).

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

697879427670 is a wasteful number, since it uses less digits than its factorization.

697879427670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584738637 (or 2584738631 counting only the distinct ones).

The product of its (nonzero) digits is 448084224, while the sum is 72.

The spelling of 697879427670 in words is "six hundred ninety-seven billion, eight hundred seventy-nine million, four hundred twenty-seven thousand, six hundred seventy".