1138681637434 has 32 divisors (see below), whose sum is σ = 1882133646336. Its totient is φ = 512357542320.

The previous prime is 1138681637381. The next prime is 1138681637461. The reversal of 1138681637434 is 4347361868311.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2941497 + ... + 3306019.

It is an arithmetic number, because the mean of its divisors is an integer number (58816676448).

Almost surely, 2^{1138681637434} is an apocalyptic number.

1138681637434 is a deficient number, since it is larger than the sum of its proper divisors (743452008902).

1138681637434 is a wasteful number, since it uses less digits than its factorization.

1138681637434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365970.

The product of its digits is 6967296, while the sum is 55.

The spelling of 1138681637434 in words is "one trillion, one hundred thirty-eight billion, six hundred eighty-one million, six hundred thirty-seven thousand, four hundred thirty-four".