7326478631 has 2 divisors, whose sum is σ = 7326478632. Its totient is φ = 7326478630.

The previous prime is 7326478613. The next prime is 7326478667. The reversal of 7326478631 is 1368746237.

Together with previous prime (7326478613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7326478631 is a prime.

It is a super-2 number, since 2×7326478631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7326472631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3663239315 + 3663239316.

It is an arithmetic number, because the mean of its divisors is an integer number (3663239316).

Almost surely, 2^7326478631 is an apocalyptic number.

7326478631 is a deficient number, since it is larger than the sum of its proper divisors (1).

7326478631 is an equidigital number, since it uses as much as digits as its factorization.

7326478631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 47.

The square root of 7326478631 is about 85594.8516617676. The cubic root of 7326478631 is about 1942.2200318796.

The spelling of 7326478631 in words is "seven billion, three hundred twenty-six million, four hundred seventy-eight thousand, six hundred thirty-one".