51220013746 has 8 divisors (see below), whose sum is σ = 83814567984. Its totient is φ = 23281824420.

The previous prime is 51220013699. The next prime is 51220013821. The reversal of 51220013746 is 64731002215.

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

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, 1164091200 + ... + 1164091243.

It is an arithmetic number, because the mean of its divisors is an integer number (10476820998).

Almost surely, 2^51220013746 is an apocalyptic number.

51220013746 is a deficient number, since it is larger than the sum of its proper divisors (32594554238).

51220013746 is a wasteful number, since it uses less digits than its factorization.

51220013746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328182456.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 51220013746 in words is "fifty-one billion, two hundred twenty million, thirteen thousand, seven hundred forty-six".