1623637185852 has 768 divisors, whose sum is σ = 4930170126336. Its totient is φ = 409423872000.

The previous prime is 1623637185827. The next prime is 1623637185853. The reversal of 1623637185852 is 2585817363261.

It is a super-2 number, since 2×1623637185852² (a number of 25 digits) contains 22 as substring.

Its product of digits (14515200) is a multiple of the sum of its prime divisors (648).

It is a junction number, because it is equal to n+sod(n) for n = 1623637185792 and 1623637185801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623637185853) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 3476738923 + ... + 3476739389.

It is an arithmetic number, because the mean of its divisors is an integer number (6419492352).

Almost surely, 2^{1623637185852} is an apocalyptic number.

1623637185852 is a gapful number since it is divisible by the number (12) 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 1623637185852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2465085063168).

1623637185852 is an abundant number, since it is smaller than the sum of its proper divisors (3306532940484).

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

1623637185852 is a wasteful number, since it uses less digits than its factorization.

1623637185852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 648 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 57.

The spelling of 1623637185852 in words is "one trillion, six hundred twenty-three billion, six hundred thirty-seven million, one hundred eighty-five thousand, eight hundred fifty-two".