11281552990 has 32 divisors (see below), whose sum is σ = 20582662464. Its totient is φ = 4451619840.

The previous prime is 11281552987. The next prime is 11281553009. The reversal of 11281552990 is 9925518211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282972 + ... + 320368.

It is an arithmetic number, because the mean of its divisors is an integer number (643208202).

Almost surely, 2^11281552990 is an apocalyptic number.

11281552990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11281552990 is a deficient number, since it is larger than the sum of its proper divisors (9301109474).

11281552990 is a wasteful number, since it uses less digits than its factorization.

11281552990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37812.

The product of its (nonzero) digits is 64800, while the sum is 43.

The spelling of 11281552990 in words is "eleven billion, two hundred eighty-one million, five hundred fifty-two thousand, nine hundred ninety".