97309969902 has 96 divisors (see below), whose sum is σ = 214716902400. Its totient is φ = 31846639104.

The previous prime is 97309969879. The next prime is 97309969907. The reversal of 97309969902 is 20996990379.

It is a self number, because there is not a number n which added to its sum of digits gives 97309969902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97309969907) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 203152099 + ... + 203152577.

It is an arithmetic number, because the mean of its divisors is an integer number (2236634400).

Almost surely, 2^97309969902 is an apocalyptic number.

97309969902 is an abundant number, since it is smaller than the sum of its proper divisors (117406932498).

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

97309969902 is a wasteful number, since it uses less digits than its factorization.

97309969902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 14880348, while the sum is 63.

The spelling of 97309969902 in words is "ninety-seven billion, three hundred nine million, nine hundred sixty-nine thousand, nine hundred two".