13611238057 has 8 divisors (see below), whose sum is σ = 14230304640. Its totient is φ = 12994444320.

The previous prime is 13611238049. The next prime is 13611238099. The reversal of 13611238057 is 75083211631.

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

It is not a de Polignac number, because 13611238057 - 2³ = 13611238049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13611238757) 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, 555957 + ... + 579922.

It is an arithmetic number, because the mean of its divisors is an integer number (1778788080).

Almost surely, 2^13611238057 is an apocalyptic number.

It is an amenable number.

13611238057 is a deficient number, since it is larger than the sum of its proper divisors (619066583).

13611238057 is a wasteful number, since it uses less digits than its factorization.

13611238057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136423.

The product of its (nonzero) digits is 30240, while the sum is 37.

Adding to 13611238057 its reverse (75083211631), we get a palindrome (88694449688).

The spelling of 13611238057 in words is "thirteen billion, six hundred eleven million, two hundred thirty-eight thousand, fifty-seven".