53958344546991 has 8 divisors (see below), whose sum is σ = 72048575837824. Its totient is φ = 35920171477080.

The previous prime is 53958344546987. The next prime is 53958344547047. The reversal of 53958344546991 is 19964544385935.

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

It is not a de Polignac number, because 53958344546991 - 2² = 53958344546987 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 (53958344546591) 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, 13014552811 + ... + 13014556956.

It is an arithmetic number, because the mean of its divisors is an integer number (9006071979728).

Almost surely, 2^{53958344546991} is an apocalyptic number.

53958344546991 is a deficient number, since it is larger than the sum of its proper divisors (18090231290833).

53958344546991 is a wasteful number, since it uses less digits than its factorization.

53958344546991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26029110461.

The product of its digits is 2519424000, while the sum is 75.

The spelling of 53958344546991 in words is "fifty-three trillion, nine hundred fifty-eight billion, three hundred forty-four million, five hundred forty-six thousand, nine hundred ninety-one".