21883739157504 has 264 divisors, whose sum is σ = 72784452036608. Its totient is φ = 6203262320640.

The previous prime is 21883739157463. The next prime is 21883739157521. The reversal of 21883739157504 is 40575193738812.

It is a happy number.

21883739157504 is a `hidden beast` number, since 2 + 1 + 8 + 8 + 3 + 73 + 9 + 1 + 57 + 504 = 666.

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

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 23 ways as a sum of consecutive naturals, for example, 6857514 + ... + 9528534.

Almost surely, 2^{21883739157504} is an apocalyptic number.

21883739157504 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 21883739157504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36392226018304).

21883739157504 is an abundant number, since it is smaller than the sum of its proper divisors (50900712879104).

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

21883739157504 is a wasteful number, since it uses less digits than its factorization.

21883739157504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671181 (or 2671160 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 63.

The spelling of 21883739157504 in words is "twenty-one trillion, eight hundred eighty-three billion, seven hundred thirty-nine million, one hundred fifty-seven thousand, five hundred four".