11878936659 has 12 divisors (see below), whose sum is σ = 17793963096. Its totient is φ = 7919290944.

The previous prime is 11878936501. The next prime is 11878936681. The reversal of 11878936659 is 95663987811.

It is not a de Polignac number, because 11878936659 - 2¹¹ = 11878934611 is a prime.

It is a super-2 number, since 2×11878936659² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11878936596 and 11878936605.

It is not an unprimeable number, because it can be changed into a prime (11878936259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24442014 + ... + 24442499.

It is an arithmetic number, because the mean of its divisors is an integer number (1482830258).

Almost surely, 2^11878936659 is an apocalyptic number.

11878936659 is a deficient number, since it is larger than the sum of its proper divisors (5915026437).

11878936659 is an frugal number, since it uses more digits than its factorization.

11878936659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48884528 (or 48884516 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The spelling of 11878936659 in words is "eleven billion, eight hundred seventy-eight million, nine hundred thirty-six thousand, six hundred fifty-nine".