1138552831698 has 64 divisors (see below), whose sum is σ = 2428890347520. Its totient is φ = 355278094272.

The previous prime is 1138552831657. The next prime is 1138552831699. The reversal of 1138552831698 is 8961382558311.

It is not an unprimeable number, because it can be changed into a prime (1138552831699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309136 + ... + 1540347.

It is an arithmetic number, because the mean of its divisors is an integer number (37951411680).

Almost surely, 2^{1138552831698} is an apocalyptic number.

1138552831698 is an abundant number, since it is smaller than the sum of its proper divisors (1290337515822).

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

1138552831698 is a wasteful number, since it uses less digits than its factorization.

1138552831698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849631.

The product of its digits is 12441600, while the sum is 60.

The spelling of 1138552831698 in words is "one trillion, one hundred thirty-eight billion, five hundred fifty-two million, eight hundred thirty-one thousand, six hundred ninety-eight".