97866507620 has 24 divisors (see below), whose sum is σ = 234879618624. Its totient is φ = 33554231136.

The previous prime is 97866507601. The next prime is 97866507659. The reversal of 97866507620 is 2670566879.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349523102 + ... + 349523381.

It is an arithmetic number, because the mean of its divisors is an integer number (9786650776).

Almost surely, 2^97866507620 is an apocalyptic number.

It is an amenable number.

97866507620 is an abundant number, since it is smaller than the sum of its proper divisors (137013111004).

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

97866507620 is a wasteful number, since it uses less digits than its factorization.

97866507620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699046499 (or 699046497 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 97866507620 in words is "ninety-seven billion, eight hundred sixty-six million, five hundred seven thousand, six hundred twenty".