71507631379 has 2 divisors, whose sum is σ = 71507631380. Its totient is φ = 71507631378.

The previous prime is 71507631359. The next prime is 71507631401. The reversal of 71507631379 is 97313670517.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71507631379 - 2¹¹ = 71507629331 is a prime.

It is a super-2 number, since 2×71507631379² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71507631319) 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, 35753815689 + 35753815690.

It is an arithmetic number, because the mean of its divisors is an integer number (35753815690).

Almost surely, 2^71507631379 is an apocalyptic number.

71507631379 is a deficient number, since it is larger than the sum of its proper divisors (1).

71507631379 is an equidigital number, since it uses as much as digits as its factorization.

71507631379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 833490, while the sum is 49.

The spelling of 71507631379 in words is "seventy-one billion, five hundred seven million, six hundred thirty-one thousand, three hundred seventy-nine".