1650672513 has 28 divisors (see below), whose sum is σ = 2828439168. Its totient is φ = 943238520.

The previous prime is 1650672509. The next prime is 1650672521. The reversal of 1650672513 is 3152760561.

It is not a de Polignac number, because 1650672513 - 2² = 1650672509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1650672503) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 156633 + ... + 166838.

Almost surely, 2^1650672513 is an apocalyptic number.

It is an amenable number.

1650672513 is a deficient number, since it is larger than the sum of its proper divisors (1177766655).

1650672513 is an frugal number, since it uses more digits than its factorization.

1650672513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323496 (or 323481 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 1650672513 is about 40628.4692426382. The cubic root of 1650672513 is about 1181.8262712021.

The spelling of 1650672513 in words is "one billion, six hundred fifty million, six hundred seventy-two thousand, five hundred thirteen".