78265813190 has 16 divisors (see below), whose sum is σ = 141493657680. Its totient is φ = 31169615520.

The previous prime is 78265813163. The next prime is 78265813201. The reversal of 78265813190 is 9131856287.

It is a super-2 number, since 2×78265813190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17086316 + ... + 17090895.

It is an arithmetic number, because the mean of its divisors is an integer number (8843353605).

Almost surely, 2^78265813190 is an apocalyptic number.

78265813190 is a deficient number, since it is larger than the sum of its proper divisors (63227844490).

78265813190 is a wasteful number, since it uses less digits than its factorization.

78265813190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34177447.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 78265813190 in words is "seventy-eight billion, two hundred sixty-five million, eight hundred thirteen thousand, one hundred ninety".