78758574241 has 4 divisors (see below), whose sum is σ = 78941309184. Its totient is φ = 78575839300.

The previous prime is 78758574227. The next prime is 78758574259. The reversal of 78758574241 is 14247585787.

It is a happy number.

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 78758574241 - 2¹³ = 78758566049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78758574541) 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, 91366825 + ... + 91367686.

It is an arithmetic number, because the mean of its divisors is an integer number (19735327296).

Almost surely, 2^78758574241 is an apocalyptic number.

It is an amenable number.

78758574241 is a deficient number, since it is larger than the sum of its proper divisors (182734943).

78758574241 is a wasteful number, since it uses less digits than its factorization.

78758574241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182734942.

The product of its digits is 17561600, while the sum is 58.

The spelling of 78758574241 in words is "seventy-eight billion, seven hundred fifty-eight million, five hundred seventy-four thousand, two hundred forty-one".