21872823092757 has 40 divisors (see below), whose sum is σ = 40214421198336. Its totient is φ = 11537313275808.

The previous prime is 21872823092723. The next prime is 21872823092837. The reversal of 21872823092757 is 75729032827812.

21872823092757 is a `hidden beast` number, since 2 + 1 + 87 + 282 + 3 + 0 + 9 + 275 + 7 = 666.

It is not a de Polignac number, because 21872823092757 - 2¹⁹ = 21872822568469 is a prime.

It is a super-2 number, since 2×21872823092757² (a number of 27 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 21872823092694 and 21872823092703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21872823092707) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 1483700613 + ... + 1483715354.

Almost surely, 2^{21872823092757} is an apocalyptic number.

21872823092757 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

21872823092757 is a deficient number, since it is larger than the sum of its proper divisors (18341598105579).

21872823092757 is a wasteful number, since it uses less digits than its factorization.

21872823092757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967415999 (or 2967415990 counting only the distinct ones).

The product of its (nonzero) digits is 47416320, while the sum is 63.

The spelling of 21872823092757 in words is "twenty-one trillion, eight hundred seventy-two billion, eight hundred twenty-three million, ninety-two thousand, seven hundred fifty-seven".