51280349124 has 12 divisors (see below), whose sum is σ = 119654147984. Its totient is φ = 17093449704.

The previous prime is 51280349123. The next prime is 51280349189. The reversal of 51280349124 is 42194308215.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (51280349123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2136681202 + ... + 2136681225.

Almost surely, 2^51280349124 is an apocalyptic number.

It is an amenable number.

51280349124 is an abundant number, since it is smaller than the sum of its proper divisors (68373798860).

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

51280349124 is a wasteful number, since it uses less digits than its factorization.

51280349124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273362434 (or 4273362432 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 51280349124 in words is "fifty-one billion, two hundred eighty million, three hundred forty-nine thousand, one hundred twenty-four".