63997190007 has 16 divisors (see below), whose sum is σ = 85450560000. Its totient is φ = 42604353792.

The previous prime is 63997189961. The next prime is 63997190009. The reversal of 63997190007 is 70009179936.

It is not a de Polignac number, because 63997190007 - 2²⁰ = 63996141431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63997190009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7500978 + ... + 7509504.

It is an arithmetic number, because the mean of its divisors is an integer number (5340660000).

Almost surely, 2^63997190007 is an apocalyptic number.

63997190007 is a deficient number, since it is larger than the sum of its proper divisors (21453369993).

63997190007 is a wasteful number, since it uses less digits than its factorization.

63997190007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11782.

The product of its (nonzero) digits is 642978, while the sum is 51.

The spelling of 63997190007 in words is "sixty-three billion, nine hundred ninety-seven million, one hundred ninety thousand, seven".