51061807743804 has 288 divisors, whose sum is σ = 152207379979200. Its totient is φ = 14229497733120.

The previous prime is 51061807743757. The next prime is 51061807743847. The reversal of 51061807743804 is 40834770816015.

51061807743804 is a `hidden beast` number, since 5 + 1 + 0 + 61 + 80 + 77 + 438 + 0 + 4 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1580404402 + ... + 1580436710.

It is an arithmetic number, because the mean of its divisors is an integer number (528497847150).

Almost surely, 2^{51061807743804} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51061807743804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76103689989600).

51061807743804 is an abundant number, since it is smaller than the sum of its proper divisors (101145572235396).

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

51061807743804 is a wasteful number, since it uses less digits than its factorization.

51061807743804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33485 (or 33480 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 51061807743804 in words is "fifty-one trillion, sixty-one billion, eight hundred seven million, seven hundred forty-three thousand, eight hundred four".