71920796701 has 4 divisors (see below), whose sum is σ = 77453165692. Its totient is φ = 66388427712.

The previous prime is 71920796687. The next prime is 71920796711. The reversal of 71920796701 is 10769702917.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45490491225 + 26430305476 = 213285^2 + 162574^2 .

It is a cyclic number.

It is not a de Polignac number, because 71920796701 - 2²¹ = 71918699549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71920796711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2766184476 + ... + 2766184501.

It is an arithmetic number, because the mean of its divisors is an integer number (19363291423).

Almost surely, 2^71920796701 is an apocalyptic number.

It is an amenable number.

71920796701 is a deficient number, since it is larger than the sum of its proper divisors (5532368991).

71920796701 is a wasteful number, since it uses less digits than its factorization.

71920796701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532368990.

The product of its (nonzero) digits is 333396, while the sum is 49.

The spelling of 71920796701 in words is "seventy-one billion, nine hundred twenty million, seven hundred ninety-six thousand, seven hundred one".