51521482946 has 8 divisors (see below), whose sum is σ = 79079485584. Its totient is φ = 25161654420.

The previous prime is 51521482933. The next prime is 51521482979. The reversal of 51521482946 is 64928412515.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51521482946.

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, 299543420 + ... + 299543591.

It is an arithmetic number, because the mean of its divisors is an integer number (9884935698).

Almost surely, 2^51521482946 is an apocalyptic number.

51521482946 is a deficient number, since it is larger than the sum of its proper divisors (27558002638).

51521482946 is a wasteful number, since it uses less digits than its factorization.

51521482946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599087056.

The product of its digits is 691200, while the sum is 47.

The spelling of 51521482946 in words is "fifty-one billion, five hundred twenty-one million, four hundred eighty-two thousand, nine hundred forty-six".