74408582461 has 4 divisors (see below), whose sum is σ = 74416860000. Its totient is φ = 74400304924.

The previous prime is 74408582441. The next prime is 74408582509. The reversal of 74408582461 is 16428580447.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16428580447 = 71 ⋅231388457.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74408582461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74408582431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4125271 + ... + 4143268.

It is an arithmetic number, because the mean of its divisors is an integer number (18604215000).

Almost surely, 2^74408582461 is an apocalyptic number.

It is an amenable number.

74408582461 is a deficient number, since it is larger than the sum of its proper divisors (8277539).

74408582461 is an equidigital number, since it uses as much as digits as its factorization.

74408582461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8277538.

The product of its (nonzero) digits is 1720320, while the sum is 49.

The spelling of 74408582461 in words is "seventy-four billion, four hundred eight million, five hundred eighty-two thousand, four hundred sixty-one".