77871010020579 has 12 divisors (see below), whose sum is σ = 113475749117016. Its totient is φ = 51454590691392.

The previous prime is 77871010020569. The next prime is 77871010020593. The reversal of 77871010020579 is 97502001017877.

It is not a de Polignac number, because 77871010020579 - 2⁷ = 77871010020451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77871010020569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38284664677 + ... + 38284666710.

It is an arithmetic number, because the mean of its divisors is an integer number (9456312426418).

Almost surely, 2^{77871010020579} is an apocalyptic number.

77871010020579 is a deficient number, since it is larger than the sum of its proper divisors (35604739096437).

77871010020579 is a wasteful number, since it uses less digits than its factorization.

77871010020579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76569331506 (or 76569331503 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 54.

The spelling of 77871010020579 in words is "seventy-seven trillion, eight hundred seventy-one billion, ten million, twenty thousand, five hundred seventy-nine".