29587992021 has 12 divisors (see below), whose sum is σ = 48843669472. Its totient is φ = 16907423976.

The previous prime is 29587992019. The next prime is 29587992029. The reversal of 29587992021 is 12029978592.

It is not a de Polignac number, because 29587992021 - 2¹ = 29587992019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29587992029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234825271 + ... + 234825396.

Almost surely, 2^29587992021 is an apocalyptic number.

29587992021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

29587992021 is a deficient number, since it is larger than the sum of its proper divisors (19255677451).

29587992021 is a wasteful number, since it uses less digits than its factorization.

29587992021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469650680 (or 469650677 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 29587992021 in words is "twenty-nine billion, five hundred eighty-seven million, nine hundred ninety-two thousand, twenty-one".