97868890236 has 96 divisors (see below), whose sum is σ = 246797203968. Its totient is φ = 30007192320.

The previous prime is 97868890219. The next prime is 97868890307. The reversal of 97868890236 is 63209886879.

It is a super-2 number, since 2×97868890236² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 95855406 + ... + 95856426.

It is an arithmetic number, because the mean of its divisors is an integer number (2570804208).

Almost surely, 2^97868890236 is an apocalyptic number.

It is an amenable number.

97868890236 is an abundant number, since it is smaller than the sum of its proper divisors (148928313732).

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

97868890236 is a wasteful number, since it uses less digits than its factorization.

97868890236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611 (or 2609 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 66.

The spelling of 97868890236 in words is "ninety-seven billion, eight hundred sixty-eight million, eight hundred ninety thousand, two hundred thirty-six".