22387381278040 has 128 divisors (see below), whose sum is σ = 54855241848000. Its totient is φ = 8190483775488.

The previous prime is 22387381278019. The next prime is 22387381278061. The reversal of 22387381278040 is 4087218378322.

It is an interprime number because it is at equal distance from previous prime (22387381278019) and next prime (22387381278061).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377669844 + ... + 377729116.

Almost surely, 2^{22387381278040} is an apocalyptic number.

22387381278040 is a gapful number since it is divisible by the number (20) 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 22387381278040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27427620924000).

22387381278040 is an abundant number, since it is smaller than the sum of its proper divisors (32467860569960).

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

22387381278040 is a wasteful number, since it uses less digits than its factorization.

22387381278040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76469 (or 76465 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 55.

The spelling of 22387381278040 in words is "twenty-two trillion, three hundred eighty-seven billion, three hundred eighty-one million, two hundred seventy-eight thousand, forty".