53877556369 has 32 divisors (see below), whose sum is σ = 67668168960. Its totient is φ = 41761440000.

The previous prime is 53877556331. The next prime is 53877556387. The reversal of 53877556369 is 96365577835.

It is not a de Polignac number, because 53877556369 - 2¹⁹ = 53877032081 is a prime.

It is a super-2 number, since 2×53877556369² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53877556369.

It is not an unprimeable number, because it can be changed into a prime (53877556319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1373967 + ... + 1412635.

It is an arithmetic number, because the mean of its divisors is an integer number (2114630280).

Almost surely, 2^53877556369 is an apocalyptic number.

It is an amenable number.

53877556369 is a deficient number, since it is larger than the sum of its proper divisors (13790612591).

53877556369 is a wasteful number, since it uses less digits than its factorization.

53877556369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39001.

The product of its digits is 142884000, while the sum is 64.

The spelling of 53877556369 in words is "fifty-three billion, eight hundred seventy-seven million, five hundred fifty-six thousand, three hundred sixty-nine".