21752680714387 has 8 divisors (see below), whose sum is σ = 24861701475072. Its totient is φ = 18644033689800.

The previous prime is 21752680714363. The next prime is 21752680714393. The reversal of 21752680714387 is 78341708625712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21752680714387 - 2¹⁵ = 21752680681619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21752680714487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93309289 + ... + 93542122.

It is an arithmetic number, because the mean of its divisors is an integer number (3107712684384).

Almost surely, 2^{21752680714387} is an apocalyptic number.

21752680714387 is a deficient number, since it is larger than the sum of its proper divisors (3109020760685).

21752680714387 is a wasteful number, since it uses less digits than its factorization.

21752680714387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186868049.

The product of its (nonzero) digits is 31610880, while the sum is 61.

The spelling of 21752680714387 in words is "twenty-one trillion, seven hundred fifty-two billion, six hundred eighty million, seven hundred fourteen thousand, three hundred eighty-seven".