97617521610 has 192 divisors, whose sum is σ = 312440094720. Its totient is φ = 20653902720.

The previous prime is 97617521569. The next prime is 97617521611. The reversal of 97617521610 is 1612571679.

97617521610 is a `hidden beast` number, since 9 + 7 + 6 + 1 + 7 + 5 + 21 + 610 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (97617521611) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 340531 + ... + 557849.

It is an arithmetic number, because the mean of its divisors is an integer number (1627292160).

Almost surely, 2^97617521610 is an apocalyptic number.

97617521610 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 97617521610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156220047360).

97617521610 is an abundant number, since it is smaller than the sum of its proper divisors (214822573110).

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

97617521610 is a wasteful number, since it uses less digits than its factorization.

97617521610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217393 (or 217390 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The spelling of 97617521610 in words is "ninety-seven billion, six hundred seventeen million, five hundred twenty-one thousand, six hundred ten".