78311862720001 has 8 divisors (see below), whose sum is σ = 79658771655680. Its totient is φ = 76973844272832.

The previous prime is 78311862719989. The next prime is 78311862720037. The reversal of 78311862720001 is 10002726811387.

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

It is a cyclic number.

It is not a de Polignac number, because 78311862720001 - 2²⁹ = 78311325849089 is a prime.

It is a super-2 number, since 2×78311862720001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78311862720041) 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, 2222604360 + ... + 2222639593.

It is an arithmetic number, because the mean of its divisors is an integer number (9957346456960).

Almost surely, 2^{78311862720001} is an apocalyptic number.

It is an amenable number.

78311862720001 is a deficient number, since it is larger than the sum of its proper divisors (1346908935679).

78311862720001 is a wasteful number, since it uses less digits than its factorization.

78311862720001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445244255.

The product of its (nonzero) digits is 225792, while the sum is 46.

The spelling of 78311862720001 in words is "seventy-eight trillion, three hundred eleven billion, eight hundred sixty-two million, seven hundred twenty thousand, one".