53646870997 has 8 divisors (see below), whose sum is σ = 53795831040. Its totient is φ = 53498065920.

The previous prime is 53646870983. The next prime is 53646871007. The reversal of 53646870997 is 79907864635.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53646870997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53646870197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672597 + ... + 748117.

It is an arithmetic number, because the mean of its divisors is an integer number (6724478880).

Almost surely, 2^53646870997 is an apocalyptic number.

It is an amenable number.

53646870997 is a deficient number, since it is larger than the sum of its proper divisors (148960043).

53646870997 is a wasteful number, since it uses less digits than its factorization.

53646870997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77483.

The product of its (nonzero) digits is 68584320, while the sum is 64.

The spelling of 53646870997 in words is "fifty-three billion, six hundred forty-six million, eight hundred seventy thousand, nine hundred ninety-seven".