7472477731 has 2 divisors, whose sum is σ = 7472477732. Its totient is φ = 7472477730.

The previous prime is 7472477717. The next prime is 7472477759. The reversal of 7472477731 is 1377742747.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7472477731 - 2⁵ = 7472477699 is a prime.

It is a super-2 number, since 2×7472477731² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7472177731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3736238865 + 3736238866.

It is an arithmetic number, because the mean of its divisors is an integer number (3736238866).

Almost surely, 2^7472477731 is an apocalyptic number.

7472477731 is a deficient number, since it is larger than the sum of its proper divisors (1).

7472477731 is an equidigital number, since it uses as much as digits as its factorization.

7472477731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1613472, while the sum is 49.

The square root of 7472477731 is about 86443.4944400098. The cubic root of 7472477731 is about 1955.0365293419.

The spelling of 7472477731 in words is "seven billion, four hundred seventy-two million, four hundred seventy-seven thousand, seven hundred thirty-one".