14778136900 has 18 divisors (see below), whose sum is σ = 32068557290. Its totient is φ = 5911254720.

The previous prime is 14778136897. The next prime is 14778136909. The reversal of 14778136900 is 963187741.

It can be written as a sum of positive squares in 3 ways, for example, as 846111744 + 13932025156 = 29088^2 + 118034^2 .

It is a super-2 number, since 2×14778136900² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14778136909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73890585 + ... + 73890784.

Almost surely, 2^14778136900 is an apocalyptic number.

14778136900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14778136900 is an abundant number, since it is smaller than the sum of its proper divisors (17290420390).

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

14778136900 is a wasteful number, since it uses less digits than its factorization.

14778136900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147781383 (or 147781376 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 14778136900 in words is "fourteen billion, seven hundred seventy-eight million, one hundred thirty-six thousand, nine hundred".