76885715971 has 2 divisors, whose sum is σ = 76885715972. Its totient is φ = 76885715970.

The previous prime is 76885715957. The next prime is 76885715981. The reversal of 76885715971 is 17951758867.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76885715971 - 2³¹ = 74738232323 is a prime.

It is a super-2 number, since 2×76885715971² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76885715981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38442857985 + 38442857986.

It is an arithmetic number, because the mean of its divisors is an integer number (38442857986).

Almost surely, 2^76885715971 is an apocalyptic number.

76885715971 is a deficient number, since it is larger than the sum of its proper divisors (1).

76885715971 is an equidigital number, since it uses as much as digits as its factorization.

76885715971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29635200, while the sum is 64.

The spelling of 76885715971 in words is "seventy-six billion, eight hundred eighty-five million, seven hundred fifteen thousand, nine hundred seventy-one".