78625522627 has 4 divisors (see below), whose sum is σ = 78744833640. Its totient is φ = 78506211616.

The previous prime is 78625522603. The next prime is 78625522649. The reversal of 78625522627 is 72622552687.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78625522627 is a prime.

It is a super-2 number, since 2×78625522627² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78625522727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59654518 + ... + 59655835.

It is an arithmetic number, because the mean of its divisors is an integer number (19686208410).

Almost surely, 2^78625522627 is an apocalyptic number.

78625522627 is a deficient number, since it is larger than the sum of its proper divisors (119311013).

78625522627 is a wasteful number, since it uses less digits than its factorization.

78625522627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119311012.

The product of its digits is 5644800, while the sum is 52.

The spelling of 78625522627 in words is "seventy-eight billion, six hundred twenty-five million, five hundred twenty-two thousand, six hundred twenty-seven".