11913615461 has 8 divisors (see below), whose sum is σ = 13161187200. Its totient is φ = 10693463040.

The previous prime is 11913615437. The next prime is 11913615557. The reversal of 11913615461 is 16451631911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11913615461 - 2²⁶ = 11846506597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11913615401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6853916 + ... + 6855653.

It is an arithmetic number, because the mean of its divisors is an integer number (1645148400).

Almost surely, 2^11913615461 is an apocalyptic number.

11913615461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11913615461 is a deficient number, since it is larger than the sum of its proper divisors (1247571739).

11913615461 is a wasteful number, since it uses less digits than its factorization.

11913615461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13709659.

The product of its digits is 19440, while the sum is 38.

The spelling of 11913615461 in words is "eleven billion, nine hundred thirteen million, six hundred fifteen thousand, four hundred sixty-one".