13774390956 has 96 divisors (see below), whose sum is σ = 36542177280. Its totient is φ = 4485030912.

The previous prime is 13774390849. The next prime is 13774390967. The reversal of 13774390956 is 65909347731.

It is a happy number.

13774390956 is a `hidden beast` number, since 137 + 74 + 390 + 9 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2926501 + ... + 2931203.

It is an arithmetic number, because the mean of its divisors is an integer number (380647680).

Almost surely, 2^13774390956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13774390956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18271088640).

13774390956 is an abundant number, since it is smaller than the sum of its proper divisors (22767786324).

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

13774390956 is a wasteful number, since it uses less digits than its factorization.

13774390956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340 (or 5332 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 13774390956 in words is "thirteen billion, seven hundred seventy-four million, three hundred ninety thousand, nine hundred fifty-six".