21419028422 has 32 divisors (see below), whose sum is σ = 35435401344. Its totient is φ = 9628819200.

The previous prime is 21419028373. The next prime is 21419028437. The reversal of 21419028422 is 22482091412.

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, 4271897 + ... + 4276907.

It is an arithmetic number, because the mean of its divisors is an integer number (1107356292).

Almost surely, 2^21419028422 is an apocalyptic number.

21419028422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21419028422 is a deficient number, since it is larger than the sum of its proper divisors (14016372922).

21419028422 is a wasteful number, since it uses less digits than its factorization.

21419028422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 21419028422 in words is "twenty-one billion, four hundred nineteen million, twenty-eight thousand, four hundred twenty-two".