51038783026387 has 8 divisors (see below), whose sum is σ = 54965309972720. Its totient is φ = 47112322753440.

The previous prime is 51038783026367. The next prime is 51038783026409. The reversal of 51038783026387 is 78362038783015.

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 not a de Polignac number, because 51038783026387 - 2²³ = 51038774637779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51038783026327) 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, 15072789 + ... + 18145702.

It is an arithmetic number, because the mean of its divisors is an integer number (6870663746590).

Almost surely, 2^{51038783026387} is an apocalyptic number.

51038783026387 is a deficient number, since it is larger than the sum of its proper divisors (3926526946333).

51038783026387 is a wasteful number, since it uses less digits than its factorization.

51038783026387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33336693.

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 51038783026387 in words is "fifty-one trillion, thirty-eight billion, seven hundred eighty-three million, twenty-six thousand, three hundred eighty-seven".