13770983856 has 80 divisors (see below), whose sum is σ = 42797062400. Its totient is φ = 3727482624.

The previous prime is 13770983851. The next prime is 13770983869. The reversal of 13770983856 is 65838907731.

It is a super-3 number, since 3×13770983856³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 13770983796 and 13770983805.

It is not an unprimeable number, because it can be changed into a prime (13770983851) 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, 1072171 + ... + 1084938.

It is an arithmetic number, because the mean of its divisors is an integer number (534963280).

Almost surely, 2^13770983856 is an apocalyptic number.

13770983856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13770983856 is an abundant number, since it is smaller than the sum of its proper divisors (29026078544).

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

13770983856 is a wasteful number, since it uses less digits than its factorization.

13770983856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157146 (or 2157140 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 13770983856 in words is "thirteen billion, seven hundred seventy million, nine hundred eighty-three thousand, eight hundred fifty-six".