51137450829 has 12 divisors (see below), whose sum is σ = 74196443776. Its totient is φ = 33938755272.

The previous prime is 51137450827. The next prime is 51137450863. The reversal of 51137450829 is 92805473115.

51137450829 is a `hidden beast` number, since 5 + 1 + 137 + 4 + 508 + 2 + 9 = 666.

51137450829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51137450829 - 2¹ = 51137450827 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51137450827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12737767 + ... + 12741780.

Almost surely, 2^51137450829 is an apocalyptic number.

It is an amenable number.

51137450829 is a deficient number, since it is larger than the sum of its proper divisors (23058992947).

51137450829 is a wasteful number, since it uses less digits than its factorization.

51137450829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25479776 (or 25479773 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 51137450829 in words is "fifty-one billion, one hundred thirty-seven million, four hundred fifty thousand, eight hundred twenty-nine".