11249638959 has 24 divisors (see below), whose sum is σ = 17096943360. Its totient is φ = 6558488352.

The previous prime is 11249638957. The next prime is 11249639021. The reversal of 11249638959 is 95983694211.

It is not a de Polignac number, because 11249638959 - 2¹ = 11249638957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 11249638899 and 11249638908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11249638957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 574279 + ... + 593544.

It is an arithmetic number, because the mean of its divisors is an integer number (712372640).

Almost surely, 2^11249638959 is an apocalyptic number.

11249638959 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11249638959 is a deficient number, since it is larger than the sum of its proper divisors (5847304401).

11249638959 is a wasteful number, since it uses less digits than its factorization.

11249638959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167871 (or 1167858 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 57.

The spelling of 11249638959 in words is "eleven billion, two hundred forty-nine million, six hundred thirty-eight thousand, nine hundred fifty-nine".