197407077986 has 48 divisors (see below), whose sum is σ = 316625682912. Its totient is φ = 92287641600.

The previous prime is 197407077977. The next prime is 197407078079. The reversal of 197407077986 is 689770704791.

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, 58732946 + ... + 58736306.

It is an arithmetic number, because the mean of its divisors is an integer number (6596368394).

Almost surely, 2^197407077986 is an apocalyptic number.

197407077986 is a deficient number, since it is larger than the sum of its proper divisors (119218604926).

197407077986 is a wasteful number, since it uses less digits than its factorization.

197407077986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035 (or 4018 counting only the distinct ones).

The product of its (nonzero) digits is 37340352, while the sum is 65.

The spelling of 197407077986 in words is "one hundred ninety-seven billion, four hundred seven million, seventy-seven thousand, nine hundred eighty-six".