51406323601 has 16 divisors (see below), whose sum is σ = 54849888000. Its totient is φ = 48040128000.

The previous prime is 51406323583. The next prime is 51406323623. The reversal of 51406323601 is 10632360415.

It is a cyclic number.

It is not a de Polignac number, because 51406323601 - 2⁵ = 51406323569 is a prime.

It is a super-2 number, since 2×51406323601² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51406323691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470625 + ... + 569473.

It is an arithmetic number, because the mean of its divisors is an integer number (3428118000).

Almost surely, 2^51406323601 is an apocalyptic number.

It is an amenable number.

51406323601 is a deficient number, since it is larger than the sum of its proper divisors (3443564399).

51406323601 is a wasteful number, since it uses less digits than its factorization.

51406323601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99240.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 51406323601 in words is "fifty-one billion, four hundred six million, three hundred twenty-three thousand, six hundred one".