74540189903 has 2 divisors, whose sum is σ = 74540189904. Its totient is φ = 74540189902.

The previous prime is 74540189897. The next prime is 74540189909. The reversal of 74540189903 is 30998104547.

It is a balanced prime because it is at equal distance from previous prime (74540189897) and next prime (74540189909).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74540189903 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 (74540189909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37270094951 + 37270094952.

It is an arithmetic number, because the mean of its divisors is an integer number (37270094952).

Almost surely, 2^74540189903 is an apocalyptic number.

74540189903 is a deficient number, since it is larger than the sum of its proper divisors (1).

74540189903 is an equidigital number, since it uses as much as digits as its factorization.

74540189903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 74540189903 in words is "seventy-four billion, five hundred forty million, one hundred eighty-nine thousand, nine hundred three".