21292314231492 has 60 divisors (see below), whose sum is σ = 55663150919376. Its totient is φ = 7097331527280.

The previous prime is 21292314231439. The next prime is 21292314231499. The reversal of 21292314231492 is 29413241329212.

21292314231492 is a `hidden beast` number, since 2 + 1 + 2 + 92 + 3 + 1 + 42 + 31 + 492 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (21292314231499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22819767 + ... + 23734497.

Almost surely, 2^{21292314231492} is an apocalyptic number.

It is an amenable number.

21292314231492 is an abundant number, since it is smaller than the sum of its proper divisors (34370836687884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21292314231492 is a wasteful number, since it uses less digits than its factorization.

21292314231492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986590 (or 986579 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 21292314231492 in words is "twenty-one trillion, two hundred ninety-two billion, three hundred fourteen million, two hundred thirty-one thousand, four hundred ninety-two".