7504989731 has 2 divisors, whose sum is σ = 7504989732. Its totient is φ = 7504989730.

The previous prime is 7504989707. The next prime is 7504989761. The reversal of 7504989731 is 1379894057.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7504989731 - 2¹⁰ = 7504988707 is a prime.

It is a super-4 number, since 4×7504989731⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (7504989761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3752494865 + 3752494866.

It is an arithmetic number, because the mean of its divisors is an integer number (3752494866).

Almost surely, 2^7504989731 is an apocalyptic number.

7504989731 is a deficient number, since it is larger than the sum of its proper divisors (1).

7504989731 is an equidigital number, since it uses as much as digits as its factorization.

7504989731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 7504989731 is about 86631.3438138876. The cubic root of 7504989731 is about 1957.8678162739.

The spelling of 7504989731 in words is "seven billion, five hundred four million, nine hundred eighty-nine thousand, seven hundred thirty-one".