118778051810 has 32 divisors (see below), whose sum is σ = 241279560000. Its totient is φ = 41702637760.

The previous prime is 118778051747. The next prime is 118778051813. The reversal of 118778051810 is 18150877811.

It is a happy number.

118778051810 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×118778051810² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118778051813) 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, 18614060 + ... + 18620439.

It is an arithmetic number, because the mean of its divisors is an integer number (7539986250).

Almost surely, 2^118778051810 is an apocalyptic number.

118778051810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118778051810 is an abundant number, since it is smaller than the sum of its proper divisors (122501508190).

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

118778051810 is a wasteful number, since it uses less digits than its factorization.

118778051810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37234546.

The product of its (nonzero) digits is 125440, while the sum is 47.

The spelling of 118778051810 in words is "one hundred eighteen billion, seven hundred seventy-eight million, fifty-one thousand, eight hundred ten".