51246418850 has 24 divisors (see below), whose sum is σ = 103983643728. Its totient is φ = 18635061200.

The previous prime is 51246418849. The next prime is 51246418877. The reversal of 51246418850 is 5881464215.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46587104 + ... + 46588203.

It is an arithmetic number, because the mean of its divisors is an integer number (4332651822).

Almost surely, 2^51246418850 is an apocalyptic number.

51246418850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51246418850 is an abundant number, since it is smaller than the sum of its proper divisors (52737224878).

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

51246418850 is a wasteful number, since it uses less digits than its factorization.

51246418850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93175330 (or 93175325 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 44.

The spelling of 51246418850 in words is "fifty-one billion, two hundred forty-six million, four hundred eighteen thousand, eight hundred fifty".