4999072731 has 16 divisors (see below), whose sum is σ = 6795166464. Its totient is φ = 3267920864.

The previous prime is 4999072721. The next prime is 4999072733. The reversal of 4999072731 is 1372709994.

It is a cyclic number.

It is not a de Polignac number, because 4999072731 - 2⁵ = 4999072699 is a prime.

It is a super-2 number, since 2×4999072731² = 49981456339655596722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4999072733) 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, 294970 + ... + 311456.

It is an arithmetic number, because the mean of its divisors is an integer number (424697904).

Almost surely, 2^4999072731 is an apocalyptic number.

4999072731 is a deficient number, since it is larger than the sum of its proper divisors (1796093733).

4999072731 is a wasteful number, since it uses less digits than its factorization.

4999072731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18450.

The product of its (nonzero) digits is 857304, while the sum is 51.

The square root of 4999072731 is about 70704.1210326527. The cubic root of 4999072731 is about 1709.8702329624.

The spelling of 4999072731 in words is "four billion, nine hundred ninety-nine million, seventy-two thousand, seven hundred thirty-one".