67499794663 has 16 divisors (see below), whose sum is σ = 80557931520. Its totient is φ = 55299315456.

The previous prime is 67499794657. The next prime is 67499794693. The reversal of 67499794663 is 36649799476.

It is a happy number.

It is not a de Polignac number, because 67499794663 - 2⁵ = 67499794631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67499794592 and 67499794601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67499794603) 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, 53431 + ... + 371287.

It is an arithmetic number, because the mean of its divisors is an integer number (5034870720).

Almost surely, 2^67499794663 is an apocalyptic number.

67499794663 is a deficient number, since it is larger than the sum of its proper divisors (13058136857).

67499794663 is a wasteful number, since it uses less digits than its factorization.

67499794663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319206.

The product of its digits is 370355328, while the sum is 70.

The spelling of 67499794663 in words is "sixty-seven billion, four hundred ninety-nine million, seven hundred ninety-four thousand, six hundred sixty-three".