51944031629 has 4 divisors (see below), whose sum is σ = 59364607584. Its totient is φ = 44523455676.

The previous prime is 51944031617. The next prime is 51944031631. The reversal of 51944031629 is 92613044915.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51944031629 - 2¹⁶ = 51943966093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51944031629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51944031229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3710287967 + ... + 3710287980.

It is an arithmetic number, because the mean of its divisors is an integer number (14841151896).

Almost surely, 2^51944031629 is an apocalyptic number.

It is an amenable number.

51944031629 is a deficient number, since it is larger than the sum of its proper divisors (7420575955).

51944031629 is an equidigital number, since it uses as much as digits as its factorization.

51944031629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7420575954.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 51944031629 in words is "fifty-one billion, nine hundred forty-four million, thirty-one thousand, six hundred twenty-nine".