62728684643 has 4 divisors (see below), whose sum is σ = 63047104560. Its totient is φ = 62410264728.

The previous prime is 62728684607. The next prime is 62728684649. The reversal of 62728684643 is 34648682726.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-62728684643 is a prime.

It is a super-3 number, since 3×62728684643³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (62728684649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159209663 + ... + 159210056.

It is an arithmetic number, because the mean of its divisors is an integer number (15761776140).

Almost surely, 2^62728684643 is an apocalyptic number.

62728684643 is a deficient number, since it is larger than the sum of its proper divisors (318419917).

62728684643 is a wasteful number, since it uses less digits than its factorization.

62728684643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318419916.

The product of its digits is 18579456, while the sum is 56.

The spelling of 62728684643 in words is "sixty-two billion, seven hundred twenty-eight million, six hundred eighty-four thousand, six hundred forty-three".