71040007077 has 32 divisors (see below), whose sum is σ = 103310944128. Its totient is φ = 43160764416.

The previous prime is 71040007063. The next prime is 71040007097. The reversal of 71040007077 is 77070004017.

It is not a de Polignac number, because 71040007077 - 2⁷ = 71040006949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71040007037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1101238 + ... + 1163960.

It is an arithmetic number, because the mean of its divisors is an integer number (3228467004).

Almost surely, 2^71040007077 is an apocalyptic number.

It is an amenable number.

71040007077 is a deficient number, since it is larger than the sum of its proper divisors (32270937051).

71040007077 is a wasteful number, since it uses less digits than its factorization.

71040007077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63109.

The product of its (nonzero) digits is 9604, while the sum is 33.

The spelling of 71040007077 in words is "seventy-one billion, forty million, seven thousand, seventy-seven".