11345621490 has 384 divisors, whose sum is σ = 36139364352. Its totient is φ = 2415329280.

The previous prime is 11345621489. The next prime is 11345621513. The reversal of 11345621490 is 9412654311.

It is a happy number.

11345621490 is a `hidden beast` number, since 1 + 1 + 3 + 4 + 562 + 1 + 4 + 90 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 100403674 + ... + 100403786.

It is an arithmetic number, because the mean of its divisors is an integer number (94112928).

Almost surely, 2^11345621490 is an apocalyptic number.

11345621490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11345621490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18069682176).

11345621490 is an abundant number, since it is smaller than the sum of its proper divisors (24793742862).

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

11345621490 is a wasteful number, since it uses less digits than its factorization.

11345621490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 11345621490 in words is "eleven billion, three hundred forty-five million, six hundred twenty-one thousand, four hundred ninety".