11259861000 has 64 divisors (see below), whose sum is σ = 35130775680. Its totient is φ = 3002628800.

The previous prime is 11259860999. The next prime is 11259861007. The reversal of 11259861000 is 16895211.

It is not an unprimeable number, because it can be changed into a prime (11259861007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1873644 + ... + 1879643.

It is an arithmetic number, because the mean of its divisors is an integer number (548918370).

Almost surely, 2^11259861000 is an apocalyptic number.

11259861000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11259861000 is an abundant number, since it is smaller than the sum of its proper divisors (23870914680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11259861000 is a wasteful number, since it uses less digits than its factorization.

11259861000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753311 (or 3753297 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 33.

The spelling of 11259861000 in words is "eleven billion, two hundred fifty-nine million, eight hundred sixty-one thousand".