21833386900390 has 32 divisors (see below), whose sum is σ = 43307440789536. Its totient is φ = 7874080139520.

The previous prime is 21833386900379. The next prime is 21833386900417. The reversal of 21833386900390 is 9300968333812.

It is a happy number.

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, 1952891271 + ... + 1952902450.

It is an arithmetic number, because the mean of its divisors is an integer number (1353357524673).

Almost surely, 2^{21833386900390} is an apocalyptic number.

21833386900390 is a deficient number, since it is larger than the sum of its proper divisors (21474053889146).

21833386900390 is a wasteful number, since it uses less digits than its factorization.

21833386900390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905793784.

The product of its (nonzero) digits is 5038848, while the sum is 55.

The spelling of 21833386900390 in words is "twenty-one trillion, eight hundred thirty-three billion, three hundred eighty-six million, nine hundred thousand, three hundred ninety".