11622894840 has 192 divisors, whose sum is σ = 39597798240. Its totient is φ = 2953359360.

The previous prime is 11622894827. The next prime is 11622894847. The reversal of 11622894840 is 4849822611.

11622894840 is a `hidden beast` number, since 1 + 162 + 2 + 8 + 9 + 484 + 0 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11622894847) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 625524 + ... + 643836.

Almost surely, 2^11622894840 is an apocalyptic number.

11622894840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11622894840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19798899120).

11622894840 is an abundant number, since it is smaller than the sum of its proper divisors (27974903400).

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

11622894840 is a wasteful number, since it uses less digits than its factorization.

11622894840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18414 (or 18407 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 11622894840 in words is "eleven billion, six hundred twenty-two million, eight hundred ninety-four thousand, eight hundred forty".