51046489120 has 96 divisors (see below), whose sum is σ = 134769712896. Its totient is φ = 18109593600.

The previous prime is 51046489097. The next prime is 51046489147. The reversal of 51046489120 is 2198464015.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281544 + ... + 425863.

It is an arithmetic number, because the mean of its divisors is an integer number (1403851176).

Almost surely, 2^51046489120 is an apocalyptic number.

It is an amenable number.

51046489120 is an abundant number, since it is smaller than the sum of its proper divisors (83723223776).

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

51046489120 is a wasteful number, since it uses less digits than its factorization.

51046489120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707474 (or 707466 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 51046489120 in words is "fifty-one billion, forty-six million, four hundred eighty-nine thousand, one hundred twenty".