62821913449 has 3 divisors (see below), whose sum is σ = 62822164093. Its totient is φ = 62821662806.

The previous prime is 62821913423. The next prime is 62821913467. The reversal of 62821913449 is 94431912826.

It is a happy number.

The square root of 62821913449 is 250643.

It is a perfect power (a square), and thus also a powerful number.

62821913449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 62821913449 - 2⁵ = 62821913417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (62821913249) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 125322 + ... + 375964.

Almost surely, 2^62821913449 is an apocalyptic number.

62821913449 is the 250643-rd square number.

62821913449 is the 125322-nd centered octagonal number.

It is an amenable number.

62821913449 is a deficient number, since it is larger than the sum of its proper divisors (250644).

62821913449 is an frugal number, since it uses more digits than its factorization.

62821913449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501286 (or 250643 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

Multiplying 62821913449 by its sum of digits (49), we get a square (3078273759001 = 1754501²).

The spelling of 62821913449 in words is "sixty-two billion, eight hundred twenty-one million, nine hundred thirteen thousand, four hundred forty-nine".