78861960241 has 4 divisors (see below), whose sum is σ = 79345776112. Its totient is φ = 78378144372.

The previous prime is 78861960227. The next prime is 78861960277. The reversal of 78861960241 is 14206916887.

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 78861960241 - 2²⁹ = 78325089329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78861960041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241907691 + ... + 241908016.

It is an arithmetic number, because the mean of its divisors is an integer number (19836444028).

Almost surely, 2^78861960241 is an apocalyptic number.

It is an amenable number.

78861960241 is a deficient number, since it is larger than the sum of its proper divisors (483815871).

78861960241 is a wasteful number, since it uses less digits than its factorization.

78861960241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483815870.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 78861960241 in words is "seventy-eight billion, eight hundred sixty-one million, nine hundred sixty thousand, two hundred forty-one".