51344820433415 has 32 divisors (see below), whose sum is σ = 65684068024320. Its totient is φ = 38440233558144.

The previous prime is 51344820433409. The next prime is 51344820433481. The reversal of 51344820433415 is 51433402844315.

It is not a de Polignac number, because 51344820433415 - 2⁴ = 51344820433399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 51344820433415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13419626 + ... + 16815944.

It is an arithmetic number, because the mean of its divisors is an integer number (2052627125760).

Almost surely, 2^{51344820433415} is an apocalyptic number.

51344820433415 is a deficient number, since it is larger than the sum of its proper divisors (14339247590905).

51344820433415 is a wasteful number, since it uses less digits than its factorization.

51344820433415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399191.

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 51344820433415 in words is "fifty-one trillion, three hundred forty-four billion, eight hundred twenty million, four hundred thirty-three thousand, four hundred fifteen".