78105025862 has 32 divisors (see below), whose sum is σ = 124432316640. Its totient is φ = 36641963520.

The previous prime is 78105025861. The next prime is 78105025937. The reversal of 78105025862 is 26852050187.

It is a super-2 number, since 2×78105025862² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78105025861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18336689 + ... + 18340947.

It is an arithmetic number, because the mean of its divisors is an integer number (3888509895).

Almost surely, 2^78105025862 is an apocalyptic number.

78105025862 is a deficient number, since it is larger than the sum of its proper divisors (46327290778).

78105025862 is a wasteful number, since it uses less digits than its factorization.

78105025862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 78105025862 in words is "seventy-eight billion, one hundred five million, twenty-five thousand, eight hundred sixty-two".