78254140180 has 24 divisors (see below), whose sum is σ = 164781485568. Its totient is φ = 31216362528.

The previous prime is 78254140171. The next prime is 78254140199. The reversal of 78254140180 is 8104145287.

It is a super-2 number, since 2×78254140180² (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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5323324 + ... + 5338003.

It is an arithmetic number, because the mean of its divisors is an integer number (6865895232).

Almost surely, 2^78254140180 is an apocalyptic number.

It is an amenable number.

78254140180 is an abundant number, since it is smaller than the sum of its proper divisors (86527345388).

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

78254140180 is a wasteful number, since it uses less digits than its factorization.

78254140180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10661703 (or 10661701 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The spelling of 78254140180 in words is "seventy-eight billion, two hundred fifty-four million, one hundred forty thousand, one hundred eighty".