78180759854 has 8 divisors (see below), whose sum is σ = 117298533240. Its totient is φ = 39081248776.

The previous prime is 78180759851. The next prime is 78180759857. The reversal of 78180759854 is 45895708187.

It is an interprime number because it is at equal distance from previous prime (78180759851) and next prime (78180759857).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78180759854² (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 (78180759851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4554869 + ... + 4572000.

It is an arithmetic number, because the mean of its divisors is an integer number (14662316655).

Almost surely, 2^78180759854 is an apocalyptic number.

78180759854 is a deficient number, since it is larger than the sum of its proper divisors (39117773386).

78180759854 is a wasteful number, since it uses less digits than its factorization.

78180759854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9131154.

The product of its (nonzero) digits is 22579200, while the sum is 62.

The spelling of 78180759854 in words is "seventy-eight billion, one hundred eighty million, seven hundred fifty-nine thousand, eight hundred fifty-four".