78245685926 has 4 divisors (see below), whose sum is σ = 117368528892. Its totient is φ = 39122842962.

The previous prime is 78245685899. The next prime is 78245685949. The reversal of 78245685926 is 62958654287.

It is a happy number.

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

It is a super-2 number, since 2×78245685926² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19561421480 + ... + 19561421483.

It is an arithmetic number, because the mean of its divisors is an integer number (29342132223).

Almost surely, 2^78245685926 is an apocalyptic number.

78245685926 is a deficient number, since it is larger than the sum of its proper divisors (39122842966).

78245685926 is a wasteful number, since it uses less digits than its factorization.

78245685926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39122842965.

The product of its digits is 58060800, while the sum is 62.

The spelling of 78245685926 in words is "seventy-eight billion, two hundred forty-five million, six hundred eighty-five thousand, nine hundred twenty-six".