51977006419 has 24 divisors (see below), whose sum is σ = 57549632112. Its totient is φ = 46910822400.

The previous prime is 51977006399. The next prime is 51977006447. The reversal of 51977006419 is 91460077915.

It is not a de Polignac number, because 51977006419 - 2²¹ = 51974909267 is a prime.

It is a super-2 number, since 2×51977006419² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51977406419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1341519 + ... + 1379719.

It is an arithmetic number, because the mean of its divisors is an integer number (2397901338).

Almost surely, 2^51977006419 is an apocalyptic number.

51977006419 is a deficient number, since it is larger than the sum of its proper divisors (5572625693).

51977006419 is a wasteful number, since it uses less digits than its factorization.

51977006419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38407 (or 38394 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 49.

The spelling of 51977006419 in words is "fifty-one billion, nine hundred seventy-seven million, six thousand, four hundred nineteen".