51707116545 has 32 divisors (see below), whose sum is σ = 95845377792. Its totient is φ = 23313733632.

The previous prime is 51707116543. The next prime is 51707116561. The reversal of 51707116545 is 54561170715.

51707116545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51707116545 - 2¹ = 51707116543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51707116497 and 51707116506.

It is not an unprimeable number, because it can be changed into a prime (51707116543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3365272 + ... + 3380601.

It is an arithmetic number, because the mean of its divisors is an integer number (2995168056).

Almost surely, 2^51707116545 is an apocalyptic number.

It is an amenable number.

51707116545 is a deficient number, since it is larger than the sum of its proper divisors (44138261247).

51707116545 is a wasteful number, since it uses less digits than its factorization.

51707116545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745961.

The product of its (nonzero) digits is 147000, while the sum is 42.

The spelling of 51707116545 in words is "fifty-one billion, seven hundred seven million, one hundred sixteen thousand, five hundred forty-five".