1138198677 has 64 divisors (see below), whose sum is σ = 2008350720. Its totient is φ = 555825600.

The previous prime is 1138198673. The next prime is 1138198693. The reversal of 1138198677 is 7768918311.

It is not a de Polignac number, because 1138198677 - 2² = 1138198673 is a prime.

It is a super-3 number, since 3×1138198677³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138198673) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 311652 + ... + 315282.

It is an arithmetic number, because the mean of its divisors is an integer number (31380480).

Almost surely, 2^1138198677 is an apocalyptic number.

It is an amenable number.

1138198677 is a deficient number, since it is larger than the sum of its proper divisors (870152043).

1138198677 is a wasteful number, since it uses less digits than its factorization.

1138198677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734.

The product of its digits is 508032, while the sum is 51.

The square root of 1138198677 is about 33737.2001950369. The cubic root of 1138198677 is about 1044.0934200617.

The spelling of 1138198677 in words is "one billion, one hundred thirty-eight million, one hundred ninety-eight thousand, six hundred seventy-seven".