51803641614450 has 48 divisors (see below), whose sum is σ = 140152397681376. Its totient is φ = 12558458572800.

The previous prime is 51803641614449. The next prime is 51803641614541. The reversal of 51803641614450 is 5441614630815.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51803641614450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15698071567 + ... + 15698074866.

It is an arithmetic number, because the mean of its divisors is an integer number (2919841618362).

Almost surely, 2^{51803641614450} is an apocalyptic number.

51803641614450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51803641614450 is an abundant number, since it is smaller than the sum of its proper divisors (88348756066926).

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

51803641614450 is a wasteful number, since it uses less digits than its factorization.

51803641614450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31396146459 (or 31396146454 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 51803641614450 in words is "fifty-one trillion, eight hundred three billion, six hundred forty-one million, six hundred fourteen thousand, four hundred fifty".