74867687623 has 2 divisors, whose sum is σ = 74867687624. Its totient is φ = 74867687622.

The previous prime is 74867687617. The next prime is 74867687627. The reversal of 74867687623 is 32678676847.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74867687623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74867687627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37433843811 + 37433843812.

It is an arithmetic number, because the mean of its divisors is an integer number (37433843812).

Almost surely, 2^74867687623 is an apocalyptic number.

74867687623 is a deficient number, since it is larger than the sum of its proper divisors (1).

74867687623 is an equidigital number, since it uses as much as digits as its factorization.

74867687623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113799168, while the sum is 64.

The spelling of 74867687623 in words is "seventy-four billion, eight hundred sixty-seven million, six hundred eighty-seven thousand, six hundred twenty-three".