21415433451412 has 96 divisors (see below), whose sum is σ = 50320159223040. Its totient is φ = 7701643192320.

The previous prime is 21415433451409. The next prime is 21415433451457.

21415433451412 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275872828 + ... + 275950444.

It is an arithmetic number, because the mean of its divisors is an integer number (524168325240).

Almost surely, 2^{21415433451412} is an apocalyptic number.

21415433451412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21415433451412 is an abundant number, since it is smaller than the sum of its proper divisors (28904725771628).

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

21415433451412 is a wasteful number, since it uses less digits than its factorization.

21415433451412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146561 (or 146559 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

It can be divided in two parts, 2141543 and 3451412, that added together give a palindrome (5592955).

The spelling of 21415433451412 in words is "twenty-one trillion, four hundred fifteen billion, four hundred thirty-three million, four hundred fifty-one thousand, four hundred twelve".