97915444589040 has 160 divisors (see below), whose sum is σ = 327114123356160. Its totient is φ = 24085512864768.

The previous prime is 97915444589003. The next prime is 97915444589041. The reversal of 97915444589040 is 4098544451979.

It is a super-2 number, since 2×97915444589040² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97915444589041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6414822 + ... + 15394181.

It is an arithmetic number, because the mean of its divisors is an integer number (2044463270976).

Almost surely, 2^{97915444589040} is an apocalyptic number.

It is an amenable number.

97915444589040 is an abundant number, since it is smaller than the sum of its proper divisors (229198678767120).

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

97915444589040 is a wasteful number, since it uses less digits than its factorization.

97915444589040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21810471 (or 21810465 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 69.

The spelling of 97915444589040 in words is "ninety-seven trillion, nine hundred fifteen billion, four hundred forty-four million, five hundred eighty-nine thousand, forty".