22623438978504 has 768 divisors, whose sum is σ = 79849299801600. Its totient is φ = 5955313674240.

The previous prime is 22623438978451. The next prime is 22623438978577. The reversal of 22623438978504 is 40587983432622.

22623438978504 is a `hidden beast` number, since 2 + 2 + 6 + 2 + 3 + 4 + 38 + 97 + 8 + 504 = 666.

It is a super-2 number, since 2×22623438978504² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 7032463104 + ... + 7032466320.

It is an arithmetic number, because the mean of its divisors is an integer number (103970442450).

Almost surely, 2^{22623438978504} is an apocalyptic number.

22623438978504 is a gapful number since it is divisible by the number (24) 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 22623438978504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39924649900800).

22623438978504 is an abundant number, since it is smaller than the sum of its proper divisors (57225860823096).

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

22623438978504 is a wasteful number, since it uses less digits than its factorization.

22623438978504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902 (or 3873 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 63.

The spelling of 22623438978504 in words is "twenty-two trillion, six hundred twenty-three billion, four hundred thirty-eight million, nine hundred seventy-eight thousand, five hundred four".