51472146545 has 32 divisors (see below), whose sum is σ = 66722745600. Its totient is φ = 38001720064.

The previous prime is 51472146533. The next prime is 51472146601. The reversal of 51472146545 is 54564127415.

It is a cyclic number.

It is not a de Polignac number, because 51472146545 - 2³⁴ = 34292277361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51472146496 and 51472146505.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5394599 + ... + 5404131.

It is an arithmetic number, because the mean of its divisors is an integer number (2085085800).

Almost surely, 2^51472146545 is an apocalyptic number.

It is an amenable number.

51472146545 is a deficient number, since it is larger than the sum of its proper divisors (15250599055).

51472146545 is a wasteful number, since it uses less digits than its factorization.

51472146545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11209.

The product of its digits is 672000, while the sum is 44.

The spelling of 51472146545 in words is "fifty-one billion, four hundred seventy-two million, one hundred forty-six thousand, five hundred forty-five".