71399983377 has 8 divisors (see below), whose sum is σ = 95325740416. Its totient is φ = 47537107632.

The previous prime is 71399983349. The next prime is 71399983393. The reversal of 71399983377 is 77338999317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71399983377 - 2⁸ = 71399983121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71399983327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15717673 + ... + 15722214.

It is an arithmetic number, because the mean of its divisors is an integer number (11915717552).

Almost surely, 2^71399983377 is an apocalyptic number.

It is an amenable number.

71399983377 is a deficient number, since it is larger than the sum of its proper divisors (23925757039).

71399983377 is a wasteful number, since it uses less digits than its factorization.

71399983377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31440647.

The product of its digits is 54010152, while the sum is 66.

The spelling of 71399983377 in words is "seventy-one billion, three hundred ninety-nine million, nine hundred eighty-three thousand, three hundred seventy-seven".