2392743705021 has 10 divisors (see below), whose sum is σ = 3574345534782. Its totient is φ = 1595162469960.

The previous prime is 2392743704983. The next prime is 2392743705041. The reversal of 2392743705021 is 1205073472932.

2392743705021 is a `hidden beast` number, since 2 + 3 + 9 + 2 + 74 + 3 + 70 + 502 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1872138164121 + 520605540900 = 1368261^2 + 721530^2 .

It is not a de Polignac number, because 2392743705021 - 2¹⁰ = 2392743703997 is a prime.

It is a super-2 number, since 2×2392743705021² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2392743705041) 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 9 ways as a sum of consecutive naturals, for example, 14770022790 + ... + 14770022951.

Almost surely, 2^{2392743705021} is an apocalyptic number.

It is an amenable number.

2392743705021 is a deficient number, since it is larger than the sum of its proper divisors (1181601829761).

2392743705021 is an equidigital number, since it uses as much as digits as its factorization.

2392743705021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29540045753 (or 29540045744 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 2392743705021 in words is "two trillion, three hundred ninety-two billion, seven hundred forty-three million, seven hundred five thousand, twenty-one".