11157911747 has 8 divisors (see below), whose sum is σ = 12124047360. Its totient is φ = 10229663880.

The previous prime is 11157911729. The next prime is 11157911783. The reversal of 11157911747 is 74711975111.

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 11157911747 - 2⁶ = 11157911683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11157911698 and 11157911707.

It is not an unprimeable number, because it can be changed into a prime (11157911797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9471323 + ... + 9472500.

It is an arithmetic number, because the mean of its divisors is an integer number (1515505920).

Almost surely, 2^11157911747 is an apocalyptic number.

11157911747 is a deficient number, since it is larger than the sum of its proper divisors (966135613).

11157911747 is a wasteful number, since it uses less digits than its factorization.

11157911747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18943873.

The product of its digits is 61740, while the sum is 44.

The spelling of 11157911747 in words is "eleven billion, one hundred fifty-seven million, nine hundred eleven thousand, seven hundred forty-seven".