97640712790 has 64 divisors (see below), whose sum is σ = 179176790016. Its totient is φ = 38303546112.

The previous prime is 97640712751. The next prime is 97640712823. The reversal of 97640712790 is 9721704679.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104205202 + ... + 104206138.

It is an arithmetic number, because the mean of its divisors is an integer number (2799637344).

Almost surely, 2^97640712790 is an apocalyptic number.

97640712790 is a deficient number, since it is larger than the sum of its proper divisors (81536077226).

97640712790 is a wasteful number, since it uses less digits than its factorization.

97640712790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813.

The product of its (nonzero) digits is 1333584, while the sum is 52.

The spelling of 97640712790 in words is "ninety-seven billion, six hundred forty million, seven hundred twelve thousand, seven hundred ninety".