21798962926 has 16 divisors (see below), whose sum is σ = 35217406224. Its totient is φ = 10060003584.

The previous prime is 21798962923. The next prime is 21798962959. The reversal of 21798962926 is 62926989712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21798962923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243966 + ... + 321118.

It is an arithmetic number, because the mean of its divisors is an integer number (2201087889).

Almost surely, 2^21798962926 is an apocalyptic number.

21798962926 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

21798962926 is a deficient number, since it is larger than the sum of its proper divisors (13418443298).

21798962926 is a wasteful number, since it uses less digits than its factorization.

21798962926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88035.

The product of its digits is 11757312, while the sum is 61.

The spelling of 21798962926 in words is "twenty-one billion, seven hundred ninety-eight million, nine hundred sixty-two thousand, nine hundred twenty-six".