21872683426748 has 48 divisors (see below), whose sum is σ = 48832037447424. Its totient is φ = 8323642736640.

The previous prime is 21872683426709. The next prime is 21872683426753. The reversal of 21872683426748 is 84762438627812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 825744965 + ... + 825771452.

It is an arithmetic number, because the mean of its divisors is an integer number (1017334113488).

Almost surely, 2^{21872683426748} is an apocalyptic number.

21872683426748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21872683426748 is an abundant number, since it is smaller than the sum of its proper divisors (26959354020676).

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

21872683426748 is a wasteful number, since it uses less digits than its factorization.

21872683426748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651516482 (or 1651516480 counting only the distinct ones).

The product of its digits is 346816512, while the sum is 68.

The spelling of 21872683426748 in words is "twenty-one trillion, eight hundred seventy-two billion, six hundred eighty-three million, four hundred twenty-six thousand, seven hundred forty-eight".