51137316142494 has 8 divisors (see below), whose sum is σ = 102274632285000. Its totient is φ = 17045772047496.

The previous prime is 51137316142483. The next prime is 51137316142559. The reversal of 51137316142494 is 49424161373115.

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

51137316142494 is an admirable number.

It is a congruent number.

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, 4261443011869 + ... + 4261443011880.

It is an arithmetic number, because the mean of its divisors is an integer number (12784329035625).

Almost surely, 2^{51137316142494} is an apocalyptic number.

51137316142494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51137316142494 is a wasteful number, since it uses less digits than its factorization.

51137316142494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8522886023754.

The product of its digits is 2177280, while the sum is 51.

The spelling of 51137316142494 in words is "fifty-one trillion, one hundred thirty-seven billion, three hundred sixteen million, one hundred forty-two thousand, four hundred ninety-four".