513137776545 has 32 divisors (see below), whose sum is σ = 921277088640. Its totient is φ = 270963835200.

The previous prime is 513137776537. The next prime is 513137776577. The reversal of 513137776545 is 545677731315.

513137776545 is a `hidden beast` number, since 5 + 13 + 13 + 7 + 7 + 76 + 545 = 666.

It is not a de Polignac number, because 513137776545 - 2³ = 513137776537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513137776491 and 513137776500.

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, 18803299 + ... + 18830568.

It is an arithmetic number, because the mean of its divisors is an integer number (28789909020).

Almost surely, 2^513137776545 is an apocalyptic number.

It is an amenable number.

513137776545 is a deficient number, since it is larger than the sum of its proper divisors (408139312095).

513137776545 is a wasteful number, since it uses less digits than its factorization.

513137776545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37633982 (or 37633976 counting only the distinct ones).

The product of its digits is 9261000, while the sum is 54.

The spelling of 513137776545 in words is "five hundred thirteen billion, one hundred thirty-seven million, seven hundred seventy-six thousand, five hundred forty-five".