118777881540 has 24 divisors (see below), whose sum is σ = 332578068480. Its totient is φ = 31674101728.

The previous prime is 118777881527. The next prime is 118777881557. The reversal of 118777881540 is 45188777811.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989815620 + ... + 989815739.

It is an arithmetic number, because the mean of its divisors is an integer number (13857419520).

Almost surely, 2^118777881540 is an apocalyptic number.

118777881540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118777881540 is an abundant number, since it is smaller than the sum of its proper divisors (213800186940).

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

118777881540 is a wasteful number, since it uses less digits than its factorization.

118777881540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979631371 (or 1979631369 counting only the distinct ones).

The product of its (nonzero) digits is 3512320, while the sum is 57.

The spelling of 118777881540 in words is "one hundred eighteen billion, seven hundred seventy-seven million, eight hundred eighty-one thousand, five hundred forty".