21434561514 has 12 divisors (see below), whose sum is σ = 46441549986. Its totient is φ = 7144853832.

The previous prime is 21434561483. The next prime is 21434561521. The reversal of 21434561514 is 41516543412.

21434561514 is a `hidden beast` number, since 2 + 1 + 4 + 34 + 5 + 615 + 1 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14584185225 + 6850376289 = 120765^2 + 82767^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 595404469 + ... + 595404504.

Almost surely, 2^21434561514 is an apocalyptic number.

21434561514 is an abundant number, since it is smaller than the sum of its proper divisors (25006988472).

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

21434561514 is a wasteful number, since it uses less digits than its factorization.

21434561514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190808981 (or 1190808978 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The spelling of 21434561514 in words is "twenty-one billion, four hundred thirty-four million, five hundred sixty-one thousand, five hundred fourteen".