78411253944 has 32 divisors (see below), whose sum is σ = 200198949120. Its totient is φ = 25580976096.

The previous prime is 78411253937. The next prime is 78411253967. The reversal of 78411253944 is 44935211487.

It is a super-2 number, since 2×78411253944² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78411253893 and 78411253902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34755634 + ... + 34757889.

It is an arithmetic number, because the mean of its divisors is an integer number (6256217160).

Almost surely, 2^78411253944 is an apocalyptic number.

It is an amenable number.

78411253944 is an abundant number, since it is smaller than the sum of its proper divisors (121787695176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78411253944 is a wasteful number, since it uses less digits than its factorization.

78411253944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69513579 (or 69513575 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The spelling of 78411253944 in words is "seventy-eight billion, four hundred eleven million, two hundred fifty-three thousand, nine hundred forty-four".