6513086745 has 64 divisors (see below), whose sum is σ = 12675398400. Its totient is φ = 3146872320.

The previous prime is 6513086717. The next prime is 6513086761. The reversal of 6513086745 is 5476803156.

It is not a de Polignac number, because 6513086745 - 2²² = 6508892441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6513086745.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 427621 + ... + 442589.

It is an arithmetic number, because the mean of its divisors is an integer number (198053100).

Almost surely, 2^6513086745 is an apocalyptic number.

It is an amenable number.

6513086745 is a deficient number, since it is larger than the sum of its proper divisors (6162311655).

6513086745 is a wasteful number, since it uses less digits than its factorization.

6513086745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15287 (or 15281 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 6513086745 is about 80703.6972201398. The cubic root of 6513086745 is about 1867.5072111462.

The spelling of 6513086745 in words is "six billion, five hundred thirteen million, eighty-six thousand, seven hundred forty-five".