74624690663 has 2 divisors, whose sum is σ = 74624690664. Its totient is φ = 74624690662.

The previous prime is 74624690593. The next prime is 74624690809. The reversal of 74624690663 is 36609642647.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74624690663 - 2¹² = 74624686567 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74624692663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37312345331 + 37312345332.

It is an arithmetic number, because the mean of its divisors is an integer number (37312345332).

Almost surely, 2^74624690663 is an apocalyptic number.

74624690663 is a deficient number, since it is larger than the sum of its proper divisors (1).

74624690663 is an equidigital number, since it uses as much as digits as its factorization.

74624690663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 53.

The spelling of 74624690663 in words is "seventy-four billion, six hundred twenty-four million, six hundred ninety thousand, six hundred sixty-three".