51422699149120 has 112 divisors (see below), whose sum is σ = 131881536955728. Its totient is φ = 18985117777920.

The previous prime is 51422699149117. The next prime is 51422699149139. The reversal of 51422699149120 is 2194199622415.

It can be written as a sum of positive squares in 8 ways, for example, as 3640982994496 + 47781716154624 = 1908136^2 + 6912432^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45690760 + ... + 46802680.

It is an arithmetic number, because the mean of its divisors is an integer number (1177513722819).

Almost surely, 2^{51422699149120} is an apocalyptic number.

It is an amenable number.

51422699149120 is an abundant number, since it is smaller than the sum of its proper divisors (80458837806608).

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

51422699149120 is a wasteful number, since it uses less digits than its factorization.

51422699149120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123068 (or 1123058 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 51422699149120 in words is "fifty-one trillion, four hundred twenty-two billion, six hundred ninety-nine million, one hundred forty-nine thousand, one hundred twenty".