21292405496 has 16 divisors (see below), whose sum is σ = 40318541640. Its totient is φ = 10540794400.

The previous prime is 21292405493. The next prime is 21292405601. The reversal of 21292405496 is 69450429212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21292405493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13175186 + ... + 13176801.

Almost surely, 2^21292405496 is an apocalyptic number.

It is an amenable number.

21292405496 is a deficient number, since it is larger than the sum of its proper divisors (19026136144).

21292405496 is a wasteful number, since it uses less digits than its factorization.

21292405496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26352094 (or 26352090 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 21292405496 in words is "twenty-one billion, two hundred ninety-two million, four hundred five thousand, four hundred ninety-six".