71512800787 has 2 divisors, whose sum is σ = 71512800788. Its totient is φ = 71512800786.

The previous prime is 71512800739. The next prime is 71512800809. The reversal of 71512800787 is 78700821517.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71512800787 is a prime.

It is a super-2 number, since 2×71512800787² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71512800707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35756400393 + 35756400394.

It is an arithmetic number, because the mean of its divisors is an integer number (35756400394).

Almost surely, 2^71512800787 is an apocalyptic number.

71512800787 is a deficient number, since it is larger than the sum of its proper divisors (1).

71512800787 is an equidigital number, since it uses as much as digits as its factorization.

71512800787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 219520, while the sum is 46.

The spelling of 71512800787 in words is "seventy-one billion, five hundred twelve million, eight hundred thousand, seven hundred eighty-seven".