74505541723 has 2 divisors, whose sum is σ = 74505541724. Its totient is φ = 74505541722.

The previous prime is 74505541699. The next prime is 74505541769. The reversal of 74505541723 is 32714550547.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74505541723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74505541723.

It is not a weakly prime, because it can be changed into another prime (74505541223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37252770861 + 37252770862.

It is an arithmetic number, because the mean of its divisors is an integer number (37252770862).

Almost surely, 2^74505541723 is an apocalyptic number.

74505541723 is a deficient number, since it is larger than the sum of its proper divisors (1).

74505541723 is an equidigital number, since it uses as much as digits as its factorization.

74505541723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588000, while the sum is 43.

The spelling of 74505541723 in words is "seventy-four billion, five hundred five million, five hundred forty-one thousand, seven hundred twenty-three".