71077680368 has 10 divisors (see below), whose sum is σ = 137713005744. Its totient is φ = 35538840176.

The previous prime is 71077680361. The next prime is 71077680379. The reversal of 71077680368 is 86308677017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71077680361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221177496 + ... + 2221177527.

Almost surely, 2^71077680368 is an apocalyptic number.

It is an amenable number.

71077680368 is a deficient number, since it is larger than the sum of its proper divisors (66635325376).

71077680368 is a wasteful number, since it uses less digits than its factorization.

71077680368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442355031 (or 4442355025 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 53.

The spelling of 71077680368 in words is "seventy-one billion, seventy-seven million, six hundred eighty thousand, three hundred sixty-eight".