21201495462 has 48 divisors (see below), whose sum is σ = 53719860480. Its totient is φ = 5916694896.

The previous prime is 21201495437. The next prime is 21201495499. The reversal of 21201495462 is 26459410212.

It is a happy number.

21201495462 is a `hidden beast` number, since 2 + 120 + 1 + 495 + 46 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1951162 + ... + 1961997.

It is an arithmetic number, because the mean of its divisors is an integer number (1119163760).

Almost surely, 2^21201495462 is an apocalyptic number.

21201495462 is an abundant number, since it is smaller than the sum of its proper divisors (32518365018).

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

21201495462 is a wasteful number, since it uses less digits than its factorization.

21201495462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913217 (or 3913214 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 21201495462 in words is "twenty-one billion, two hundred one million, four hundred ninety-five thousand, four hundred sixty-two".