11537857830 has 16 divisors (see below), whose sum is σ = 27690858864. Its totient is φ = 3076762080.

The previous prime is 11537857819. The next prime is 11537857861. The reversal of 11537857830 is 3875873511.

It is a self number, because there is not a number n which added to its sum of digits gives 11537857830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192297601 + ... + 192297660.

It is an arithmetic number, because the mean of its divisors is an integer number (1730678679).

Almost surely, 2^11537857830 is an apocalyptic number.

11537857830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11537857830 is an abundant number, since it is smaller than the sum of its proper divisors (16153001034).

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

11537857830 is a wasteful number, since it uses less digits than its factorization.

11537857830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384595271.

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 11537857830 in words is "eleven billion, five hundred thirty-seven million, eight hundred fifty-seven thousand, eight hundred thirty".