97181952902 has 8 divisors (see below), whose sum is σ = 146587303800. Its totient is φ = 48319518304.

The previous prime is 97181952899. The next prime is 97181952929. The reversal of 97181952902 is 20925918179.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135728627 + ... + 135729342.

It is an arithmetic number, because the mean of its divisors is an integer number (18323412975).

Almost surely, 2^97181952902 is an apocalyptic number.

97181952902 is a deficient number, since it is larger than the sum of its proper divisors (49405350898).

97181952902 is a wasteful number, since it uses less digits than its factorization.

97181952902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271458150.

The product of its (nonzero) digits is 816480, while the sum is 53.

The spelling of 97181952902 in words is "ninety-seven billion, one hundred eighty-one million, nine hundred fifty-two thousand, nine hundred two".