116438495778 has 36 divisors (see below), whose sum is σ = 277303254774. Its totient is φ = 35284392000.

The previous prime is 116438495759. The next prime is 116438495791. The reversal of 116438495778 is 877594834611.

116438495778 is a `hidden beast` number, since 1 + 16 + 4 + 3 + 8 + 49 + 577 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 115554444489 + 884051289 = 339933^2 + 29733^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26728423 + ... + 26732778.

Almost surely, 2^116438495778 is an apocalyptic number.

116438495778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

116438495778 is an abundant number, since it is smaller than the sum of its proper divisors (160864758996).

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

116438495778 is a wasteful number, since it uses less digits than its factorization.

116438495778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53461231 (or 53461217 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

It can be divided in two parts, 116438 and 495778, that added together give a palindrome (612216).

The spelling of 116438495778 in words is "one hundred sixteen billion, four hundred thirty-eight million, four hundred ninety-five thousand, seven hundred seventy-eight".