11129974257 has 8 divisors (see below), whose sum is σ = 14978657376. Its totient is φ = 7350636992.

The previous prime is 11129974253. The next prime is 11129974279. The reversal of 11129974257 is 75247992111.

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 11129974257 - 2² = 11129974253 is a prime.

It is a super-2 number, since 2×11129974257² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11129974253) 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, 17336088 + ... + 17336729.

It is an arithmetic number, because the mean of its divisors is an integer number (1872332172).

Almost surely, 2^11129974257 is an apocalyptic number.

It is an amenable number.

11129974257 is a deficient number, since it is larger than the sum of its proper divisors (3848683119).

11129974257 is a wasteful number, since it uses less digits than its factorization.

11129974257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34672927.

The product of its digits is 317520, while the sum is 48.

The spelling of 11129974257 in words is "eleven billion, one hundred twenty-nine million, nine hundred seventy-four thousand, two hundred fifty-seven".