51036813450 has 96 divisors (see below), whose sum is σ = 160725486720. Its totient is φ = 11665555200.

The previous prime is 51036813437. The next prime is 51036813467. The reversal of 51036813450 is 5431863015.

51036813450 is a `hidden beast` number, since 510 + 3 + 6 + 8 + 134 + 5 + 0 = 666.

51036813450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2690911 + ... + 2709810.

It is an arithmetic number, because the mean of its divisors is an integer number (1674223820).

Almost surely, 2^51036813450 is an apocalyptic number.

51036813450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51036813450 is an abundant number, since it is smaller than the sum of its proper divisors (109688673270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51036813450 is a wasteful number, since it uses less digits than its factorization.

51036813450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400749 (or 5400738 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 51036813450 in words is "fifty-one billion, thirty-six million, eight hundred thirteen thousand, four hundred fifty".