21348142932 has 48 divisors (see below), whose sum is σ = 52808924672. Its totient is φ = 6700371840.

The previous prime is 21348142931. The next prime is 21348142951. The reversal of 21348142932 is 23924184312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21348142931) 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 15 ways as a sum of consecutive naturals, for example, 761743 + ... + 789270.

Almost surely, 2^21348142932 is an apocalyptic number.

It is an amenable number.

21348142932 is an abundant number, since it is smaller than the sum of its proper divisors (31460781740).

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

21348142932 is a wasteful number, since it uses less digits than its factorization.

21348142932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551088 (or 1551086 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The spelling of 21348142932 in words is "twenty-one billion, three hundred forty-eight million, one hundred forty-two thousand, nine hundred thirty-two".