21835020337390 has 16 divisors (see below), whose sum is σ = 42326347115808. Its totient is φ = 8062161355296.

The previous prime is 21835020337387. The next prime is 21835020337483. The reversal of 21835020337390 is 9373302053812.

It is a super-2 number, since 2×21835020337390² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21835020337390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83980847322 + ... + 83980847581.

It is an arithmetic number, because the mean of its divisors is an integer number (2645396694738).

Almost surely, 2^{21835020337390} is an apocalyptic number.

21835020337390 is a deficient number, since it is larger than the sum of its proper divisors (20491326778418).

21835020337390 is a wasteful number, since it uses less digits than its factorization.

21835020337390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167961694923.

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 21835020337390 in words is "twenty-one trillion, eight hundred thirty-five billion, twenty million, three hundred thirty-seven thousand, three hundred ninety".