97432592040 has 512 divisors, whose sum is σ = 403329024000. Its totient is φ = 20416665600.

The previous prime is 97432591999. The next prime is 97432592051. The reversal of 97432592040 is 4029523479.

97432592040 is a `hidden beast` number, since 9 + 7 + 432 + 5 + 9 + 204 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4441900 + ... + 4463780.

It is an arithmetic number, because the mean of its divisors is an integer number (787752000).

Almost surely, 2^97432592040 is an apocalyptic number.

97432592040 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97432592040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201664512000).

97432592040 is an abundant number, since it is smaller than the sum of its proper divisors (305896431960).

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

97432592040 is a wasteful number, since it uses less digits than its factorization.

97432592040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21958 (or 21948 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 97432592040 in words is "ninety-seven billion, four hundred thirty-two million, five hundred ninety-two thousand, forty".