97272047880 has 320 divisors, whose sum is σ = 381602327040. Its totient is φ = 21760316928.

The previous prime is 97272047867. The next prime is 97272047897. The reversal of 97272047880 is 8874027279.

97272047880 is a `hidden beast` number, since 9 + 72 + 7 + 20 + 478 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1020334 + ... + 1111586.

It is an arithmetic number, because the mean of its divisors is an integer number (1192507272).

Almost surely, 2^97272047880 is an apocalyptic number.

97272047880 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 97272047880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190801163520).

97272047880 is an abundant number, since it is smaller than the sum of its proper divisors (284330279160).

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

97272047880 is a wasteful number, since it uses less digits than its factorization.

97272047880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91330 (or 91317 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The spelling of 97272047880 in words is "ninety-seven billion, two hundred seventy-two million, forty-seven thousand, eight hundred eighty".