51081874750 has 16 divisors (see below), whose sum is σ = 95625270000. Its totient is φ = 20432749800.

The previous prime is 51081874691. The next prime is 51081874759. The reversal of 51081874750 is 5747818015.

It is a self number, because there is not a number n which added to its sum of digits gives 51081874750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51081874759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102163500 + ... + 102163999.

It is an arithmetic number, because the mean of its divisors is an integer number (5976579375).

Almost surely, 2^51081874750 is an apocalyptic number.

51081874750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51081874750 is a deficient number, since it is larger than the sum of its proper divisors (44543395250).

51081874750 is a wasteful number, since it uses less digits than its factorization.

51081874750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204327516 (or 204327506 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 46.

The spelling of 51081874750 in words is "fifty-one billion, eighty-one million, eight hundred seventy-four thousand, seven hundred fifty".