11993486739 has 32 divisors (see below), whose sum is σ = 17795119104. Its totient is φ = 7135223040.

The previous prime is 11993486663. The next prime is 11993486741. The reversal of 11993486739 is 93768439911.

It is not a de Polignac number, because 11993486739 - 2¹⁵ = 11993453971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11993486039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1321752 + ... + 1330794.

It is an arithmetic number, because the mean of its divisors is an integer number (556097472).

Almost surely, 2^11993486739 is an apocalyptic number.

11993486739 is a deficient number, since it is larger than the sum of its proper divisors (5801632365).

11993486739 is a wasteful number, since it uses less digits than its factorization.

11993486739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10187.

The product of its digits is 8817984, while the sum is 60.

The spelling of 11993486739 in words is "eleven billion, nine hundred ninety-three million, four hundred eighty-six thousand, seven hundred thirty-nine".