988197541290972 has 72 divisors (see below), whose sum is σ = 2520926466458400. Its totient is φ = 326368654835328.

The previous prime is 988197541290899. The next prime is 988197541290991. The reversal of 988197541290972 is 279092145791889.

988197541290972 is a `hidden beast` number, since 9 + 8 + 8 + 197 + 5 + 412 + 9 + 0 + 9 + 7 + 2 = 666.

988197541290972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×988197541290972² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 988197541290891 and 988197541290900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148031929 + ... + 154563407.

It is an arithmetic number, because the mean of its divisors is an integer number (35012867589700).

Almost surely, 2^{988197541290972} is an apocalyptic number.

It is an amenable number.

988197541290972 is an abundant number, since it is smaller than the sum of its proper divisors (1532728925167428).

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

988197541290972 is a wasteful number, since it uses less digits than its factorization.

988197541290972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570155 (or 6570150 counting only the distinct ones).

The product of its (nonzero) digits is 1646023680, while the sum is 81.

The spelling of 988197541290972 in words is "nine hundred eighty-eight trillion, one hundred ninety-seven billion, five hundred forty-one million, two hundred ninety thousand, nine hundred seventy-two".