11726487551257 has 8 divisors (see below), whose sum is σ = 11821595052960. Its totient is φ = 11631464782080.

The previous prime is 11726487551231. The next prime is 11726487551347. The reversal of 11726487551257 is 75215578462711.

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 11726487551257 - 2²³ = 11726479162649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11726487551195 and 11726487551204.

It is not an unprimeable number, because it can be changed into a prime (11726287551257) 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, 20905207 + ... + 21458812.

It is an arithmetic number, because the mean of its divisors is an integer number (1477699381620).

Almost surely, 2^{11726487551257} is an apocalyptic number.

It is an amenable number.

11726487551257 is a deficient number, since it is larger than the sum of its proper divisors (95107501703).

11726487551257 is a wasteful number, since it uses less digits than its factorization.

11726487551257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42366263.

The product of its digits is 32928000, while the sum is 61.

The spelling of 11726487551257 in words is "eleven trillion, seven hundred twenty-six billion, four hundred eighty-seven million, five hundred fifty-one thousand, two hundred fifty-seven".