51370031170042 has 16 divisors (see below), whose sum is σ = 82986158345832. Its totient is φ = 23708159354880.

The previous prime is 51370031170027. The next prime is 51370031170061. The reversal of 51370031170042 is 24007113007315.

It can be written as a sum of positive squares in 4 ways, for example, as 7002961908721 + 44367069261321 = 2646311^2 + 6660861^2 .

It is a super-2 number, since 2×51370031170042² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44662903 + ... + 45798634.

Almost surely, 2^{51370031170042} is an apocalyptic number.

51370031170042 is a deficient number, since it is larger than the sum of its proper divisors (31616127175790).

51370031170042 is a wasteful number, since it uses less digits than its factorization.

51370031170042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90483393.

The product of its (nonzero) digits is 17640, while the sum is 34.

Adding to 51370031170042 its reverse (24007113007315), we get a palindrome (75377144177357).

The spelling of 51370031170042 in words is "fifty-one trillion, three hundred seventy billion, thirty-one million, one hundred seventy thousand, forty-two".