21373303758258 has 32 divisors (see below), whose sum is σ = 45065002663296. Its totient is φ = 6744422158848.

The previous prime is 21373303758253. The next prime is 21373303758293. The reversal of 21373303758258 is 85285730337312.

It is a super-2 number, since 2×21373303758258² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21373303758198 and 21373303758207.

It is not an unprimeable number, because it can be changed into a prime (21373303758253) 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 15 ways as a sum of consecutive naturals, for example, 798332041 + ... + 798358812.

It is an arithmetic number, because the mean of its divisors is an integer number (1408281333228).

Almost surely, 2^{21373303758258} is an apocalyptic number.

21373303758258 is an abundant number, since it is smaller than the sum of its proper divisors (23691698905038).

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

21373303758258 is a wasteful number, since it uses less digits than its factorization.

21373303758258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596690978.

The product of its (nonzero) digits is 25401600, while the sum is 57.

The spelling of 21373303758258 in words is "twenty-one trillion, three hundred seventy-three billion, three hundred three million, seven hundred fifty-eight thousand, two hundred fifty-eight".