21414334152 has 16 divisors (see below), whose sum is σ = 53535835440. Its totient is φ = 7138111376.

The previous prime is 21414334133. The next prime is 21414334231. The reversal of 21414334152 is 25143341412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446131938 + ... + 446131985.

It is an arithmetic number, because the mean of its divisors is an integer number (3345989715).

Almost surely, 2^21414334152 is an apocalyptic number.

It is an amenable number.

21414334152 is an abundant number, since it is smaller than the sum of its proper divisors (32121501288).

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

21414334152 is a wasteful number, since it uses less digits than its factorization.

21414334152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892263932 (or 892263928 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

Adding to 21414334152 its reverse (25143341412), we get a palindrome (46557675564).

The spelling of 21414334152 in words is "twenty-one billion, four hundred fourteen million, three hundred thirty-four thousand, one hundred fifty-two".