51905404822 has 8 divisors (see below), whose sum is σ = 77934969216. Its totient is φ = 25927081752.

The previous prime is 51905404777. The next prime is 51905404843. The reversal of 51905404822 is 22840450915.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12807798 + ... + 12811849.

It is an arithmetic number, because the mean of its divisors is an integer number (9741871152).

Almost surely, 2^51905404822 is an apocalyptic number.

51905404822 is a deficient number, since it is larger than the sum of its proper divisors (26029564394).

51905404822 is a wasteful number, since it uses less digits than its factorization.

51905404822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25620662.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 51905404822 in words is "fifty-one billion, nine hundred five million, four hundred four thousand, eight hundred twenty-two".