51622216137 has 8 divisors (see below), whose sum is σ = 76477357280. Its totient is φ = 34414810740.

The previous prime is 51622216103. The next prime is 51622216141. The reversal of 51622216137 is 73161222615.

51622216137 is a `hidden beast` number, since 5 + 1 + 622 + 2 + 16 + 13 + 7 = 666.

It is not a de Polignac number, because 51622216137 - 2²⁴ = 51605438921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51622216937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955966939 + ... + 955966992.

It is an arithmetic number, because the mean of its divisors is an integer number (9559669660).

Almost surely, 2^51622216137 is an apocalyptic number.

It is an amenable number.

51622216137 is a deficient number, since it is larger than the sum of its proper divisors (24855141143).

51622216137 is a wasteful number, since it uses less digits than its factorization.

51622216137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911933940 (or 1911933934 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The spelling of 51622216137 in words is "fifty-one billion, six hundred twenty-two million, two hundred sixteen thousand, one hundred thirty-seven".