21469629234 has 32 divisors (see below), whose sum is σ = 46160916480. Its totient is φ = 6635628432.

The previous prime is 21469629227. The next prime is 21469629257. The reversal of 21469629234 is 43292696412.

It is a super-3 number, since 3×21469629234³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

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, 1998154 + ... + 2008869.

It is an arithmetic number, because the mean of its divisors is an integer number (1442528640).

Almost surely, 2^21469629234 is an apocalyptic number.

21469629234 is an abundant number, since it is smaller than the sum of its proper divisors (24691287246).

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

21469629234 is a wasteful number, since it uses less digits than its factorization.

21469629234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007094.

The product of its digits is 1119744, while the sum is 48.

The spelling of 21469629234 in words is "twenty-one billion, four hundred sixty-nine million, six hundred twenty-nine thousand, two hundred thirty-four".