197177992972 has 12 divisors (see below), whose sum is σ = 345340446640. Its totient is φ = 98509293936.

The previous prime is 197177992897. The next prime is 197177993011. The reversal of 197177992972 is 279299771791.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19920072 + ... + 19929967.

Almost surely, 2^197177992972 is an apocalyptic number.

It is an amenable number.

197177992972 is a deficient number, since it is larger than the sum of its proper divisors (148162453668).

197177992972 is a wasteful number, since it uses less digits than its factorization.

197177992972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39851280 (or 39851278 counting only the distinct ones).

The product of its digits is 63011844, while the sum is 70.

The spelling of 197177992972 in words is "one hundred ninety-seven billion, one hundred seventy-seven million, nine hundred ninety-two thousand, nine hundred seventy-two".