13777979358 has 192 divisors, whose sum is σ = 35006791680. Its totient is φ = 3578065920.

The previous prime is 13777979329. The next prime is 13777979381. The reversal of 13777979358 is 85397977731.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12674691 + ... + 12675777.

It is an arithmetic number, because the mean of its divisors is an integer number (182327040).

Almost surely, 2^13777979358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13777979358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17503395840).

13777979358 is an abundant number, since it is smaller than the sum of its proper divisors (21228812322).

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

13777979358 is a wasteful number, since it uses less digits than its factorization.

13777979358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223 (or 1212 counting only the distinct ones).

The product of its digits is 70013160, while the sum is 66.

The spelling of 13777979358 in words is "thirteen billion, seven hundred seventy-seven million, nine hundred seventy-nine thousand, three hundred fifty-eight".