5649139923 has 16 divisors (see below), whose sum is σ = 8609281536. Its totient is φ = 3227679360.

The previous prime is 5649139897. The next prime is 5649139943. The reversal of 5649139923 is 3299319465.

It is not a de Polignac number, because 5649139923 - 2⁵ = 5649139891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5649139943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275515 + ... + 295307.

It is an arithmetic number, because the mean of its divisors is an integer number (538080096).

Almost surely, 2^5649139923 is an apocalyptic number.

5649139923 is a deficient number, since it is larger than the sum of its proper divisors (2960141613).

5649139923 is a wasteful number, since it uses less digits than its factorization.

5649139923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33394.

The product of its digits is 1574640, while the sum is 51.

The square root of 5649139923 is about 75160.7605270197. The cubic root of 5649139923 is about 1780.9871142923.

The spelling of 5649139923 in words is "five billion, six hundred forty-nine million, one hundred thirty-nine thousand, nine hundred twenty-three".