51877623542 has 4 divisors (see below), whose sum is σ = 77816435316. Its totient is φ = 25938811770.

The previous prime is 51877623493. The next prime is 51877623587. The reversal of 51877623542 is 24532677815.

51877623542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12969405884 + ... + 12969405887.

It is an arithmetic number, because the mean of its divisors is an integer number (19454108829).

Almost surely, 2^51877623542 is an apocalyptic number.

51877623542 is a deficient number, since it is larger than the sum of its proper divisors (25938811774).

51877623542 is a wasteful number, since it uses less digits than its factorization.

51877623542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25938811773.

The product of its digits is 2822400, while the sum is 50.

The spelling of 51877623542 in words is "fifty-one billion, eight hundred seventy-seven million, six hundred twenty-three thousand, five hundred forty-two".