11457194917 has 8 divisors (see below), whose sum is σ = 13340992896. Its totient is φ = 9635160912.

The previous prime is 11457194911. The next prime is 11457194933. The reversal of 11457194917 is 71949175411.

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 11457194917 - 2⁷ = 11457194789 is a prime.

It is a super-2 number, since 2×11457194917² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11457194911) 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, 15440593 + ... + 15441334.

It is an arithmetic number, because the mean of its divisors is an integer number (1667624112).

Almost surely, 2^11457194917 is an apocalyptic number.

It is an amenable number.

11457194917 is a deficient number, since it is larger than the sum of its proper divisors (1883797979).

11457194917 is an equidigital number, since it uses as much as digits as its factorization.

11457194917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30881987.

The product of its digits is 317520, while the sum is 49.

The spelling of 11457194917 in words is "eleven billion, four hundred fifty-seven million, one hundred ninety-four thousand, nine hundred seventeen".