78180830424401 has 4 divisors (see below), whose sum is σ = 78275825358912. Its totient is φ = 78085835489892.

The previous prime is 78180830424383. The next prime is 78180830424413. The reversal of 78180830424401 is 10442403808187.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78180830424401 - 2³⁴ = 78163650555217 is a prime.

It is a super-2 number, since 2×78180830424401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78180830424401.

It is not an unprimeable number, because it can be changed into a prime (78180830424101) 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, 47497466021 + ... + 47497467666.

It is an arithmetic number, because the mean of its divisors is an integer number (19568956339728).

Almost surely, 2^{78180830424401} is an apocalyptic number.

It is an amenable number.

78180830424401 is a deficient number, since it is larger than the sum of its proper divisors (94994934511).

78180830424401 is an equidigital number, since it uses as much as digits as its factorization.

78180830424401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94994934510.

The product of its (nonzero) digits is 1376256, while the sum is 50.

The spelling of 78180830424401 in words is "seventy-eight trillion, one hundred eighty billion, eight hundred thirty million, four hundred twenty-four thousand, four hundred one".