196977511407 has 64 divisors (see below), whose sum is σ = 277995110400. Its totient is φ = 123942609024.

The previous prime is 196977511387. The next prime is 196977511447. The reversal of 196977511407 is 704115779691.

It is not a de Polignac number, because 196977511407 - 2⁶ = 196977511343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196977511447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140798094 + ... + 140799492.

It is an arithmetic number, because the mean of its divisors is an integer number (4343673600).

Almost surely, 2^196977511407 is an apocalyptic number.

196977511407 is a deficient number, since it is larger than the sum of its proper divisors (81017598993).

196977511407 is a wasteful number, since it uses less digits than its factorization.

196977511407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 3333960, while the sum is 57.

The spelling of 196977511407 in words is "one hundred ninety-six billion, nine hundred seventy-seven million, five hundred eleven thousand, four hundred seven".