7124729313 has 32 divisors (see below), whose sum is σ = 10373529600. Its totient is φ = 4323249216.

The previous prime is 7124729273. The next prime is 7124729317. The reversal of 7124729313 is 3139274217.

It is not a de Polignac number, because 7124729313 - 2²⁴ = 7107952097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (7124729317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4432756 + ... + 4434362.

It is an arithmetic number, because the mean of its divisors is an integer number (324172800).

Almost surely, 2^7124729313 is an apocalyptic number.

It is an amenable number.

7124729313 is a deficient number, since it is larger than the sum of its proper divisors (3248800287).

7124729313 is a wasteful number, since it uses less digits than its factorization.

7124729313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141.

The product of its digits is 63504, while the sum is 39.

The square root of 7124729313 is about 84408.1116540348. Note that the first 3 decimals coincide. The cubic root of 7124729313 is about 1924.2261971608.

The spelling of 7124729313 in words is "seven billion, one hundred twenty-four million, seven hundred twenty-nine thousand, three hundred thirteen".