71512800739 has 2 divisors, whose sum is σ = 71512800740. Its totient is φ = 71512800738.

The previous prime is 71512800719. The next prime is 71512800787. The reversal of 71512800739 is 93700821517.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71512800739 - 2⁵ = 71512800707 is a prime.

It is a super-2 number, since 2×71512800739² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71512800695 and 71512800704.

It is not a weakly prime, because it can be changed into another prime (71512800719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35756400369 + 35756400370.

It is an arithmetic number, because the mean of its divisors is an integer number (35756400370).

Almost surely, 2^71512800739 is an apocalyptic number.

71512800739 is a deficient number, since it is larger than the sum of its proper divisors (1).

71512800739 is an equidigital number, since it uses as much as digits as its factorization.

71512800739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 71512800739 in words is "seventy-one billion, five hundred twelve million, eight hundred thousand, seven hundred thirty-nine".