11851539090 has 64 divisors (see below), whose sum is σ = 28616976000. Its totient is φ = 3141218304.

The previous prime is 11851539083. The next prime is 11851539131. The reversal of 11851539090 is 9093515811.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3810456 + ... + 3813564.

It is an arithmetic number, because the mean of its divisors is an integer number (447140250).

Almost surely, 2^11851539090 is an apocalyptic number.

11851539090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11851539090 is an abundant number, since it is smaller than the sum of its proper divisors (16765436910).

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

11851539090 is a wasteful number, since it uses less digits than its factorization.

11851539090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851.

The product of its (nonzero) digits is 48600, while the sum is 42.

The spelling of 11851539090 in words is "eleven billion, eight hundred fifty-one million, five hundred thirty-nine thousand, ninety".