62221051649 has 4 divisors (see below), whose sum is σ = 62242832964. Its totient is φ = 62199270336.

The previous prime is 62221051639. The next prime is 62221051657. The reversal of 62221051649 is 94615012226.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45956640625 + 16264411024 = 214375^2 + 127532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-62221051649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (62221051619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10886372 + ... + 10892085.

It is an arithmetic number, because the mean of its divisors is an integer number (15560708241).

Almost surely, 2^62221051649 is an apocalyptic number.

It is an amenable number.

62221051649 is a deficient number, since it is larger than the sum of its proper divisors (21781315).

62221051649 is a wasteful number, since it uses less digits than its factorization.

62221051649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21781314.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 62221051649 in words is "sixty-two billion, two hundred twenty-one million, fifty-one thousand, six hundred forty-nine".