62768667661 has 16 divisors (see below), whose sum is σ = 77269229568. Its totient is φ = 49802425200.

The previous prime is 62768667641. The next prime is 62768667683. The reversal of 62768667661 is 16676686726.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 62768667661 - 2⁵ = 62768667629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 62768667661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62768667631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6283195 + ... + 6293176.

It is an arithmetic number, because the mean of its divisors is an integer number (4829326848).

Almost surely, 2^62768667661 is an apocalyptic number.

It is an amenable number.

62768667661 is a deficient number, since it is larger than the sum of its proper divisors (14500561907).

62768667661 is a wasteful number, since it uses less digits than its factorization.

62768667661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12576432.

The product of its digits is 36578304, while the sum is 61.

The spelling of 62768667661 in words is "sixty-two billion, seven hundred sixty-eight million, six hundred sixty-seven thousand, six hundred sixty-one".