78118129710 has 48 divisors (see below), whose sum is σ = 204001935696. Its totient is φ = 20739727104.

The previous prime is 78118129693. The next prime is 78118129741. The reversal of 78118129710 is 1792181187.

It is a super-2 number, since 2×78118129710² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1891419 + ... + 1932278.

It is an arithmetic number, because the mean of its divisors is an integer number (4250040327).

Almost surely, 2^78118129710 is an apocalyptic number.

78118129710 is an abundant number, since it is smaller than the sum of its proper divisors (125883805986).

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

78118129710 is a wasteful number, since it uses less digits than its factorization.

78118129710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823937 (or 3823934 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 45.

The spelling of 78118129710 in words is "seventy-eight billion, one hundred eighteen million, one hundred twenty-nine thousand, seven hundred ten".