97385554992 has 40 divisors (see below), whose sum is σ = 274450201920. Its totient is φ = 29510774080.

The previous prime is 97385554943. The next prime is 97385555011. The reversal of 97385554992 is 29945558379.

It is a super-2 number, since 2×97385554992² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92220642 + ... + 92221697.

It is an arithmetic number, because the mean of its divisors is an integer number (6861255048).

Almost surely, 2^97385554992 is an apocalyptic number.

It is an amenable number.

97385554992 is an abundant number, since it is smaller than the sum of its proper divisors (177064646928).

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

97385554992 is a wasteful number, since it uses less digits than its factorization.

97385554992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184442361 (or 184442355 counting only the distinct ones).

The product of its digits is 122472000, while the sum is 66.

The spelling of 97385554992 in words is "ninety-seven billion, three hundred eighty-five million, five hundred fifty-four thousand, nine hundred ninety-two".