11913676449 has 32 divisors (see below), whose sum is σ = 17428561920. Its totient is φ = 7208877312.

The previous prime is 11913676429. The next prime is 11913676469. The reversal of 11913676449 is 94467631911.

It is an interprime number because it is at equal distance from previous prime (11913676429) and next prime (11913676469).

It is not a de Polignac number, because 11913676449 - 2²³ = 11905287841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (11913676409) 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, 138864 + ... + 207630.

It is an arithmetic number, because the mean of its divisors is an integer number (544642560).

Almost surely, 2^11913676449 is an apocalyptic number.

It is an amenable number.

11913676449 is a deficient number, since it is larger than the sum of its proper divisors (5514885471).

11913676449 is a wasteful number, since it uses less digits than its factorization.

11913676449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68909.

The product of its digits is 979776, while the sum is 51.

The spelling of 11913676449 in words is "eleven billion, nine hundred thirteen million, six hundred seventy-six thousand, four hundred forty-nine".