74046280985 has 4 divisors (see below), whose sum is σ = 88855537188. Its totient is φ = 59237024784.

The previous prime is 74046280981. The next prime is 74046281003. The reversal of 74046280985 is 58908264047.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49831186441 + 24215094544 = 223229^2 + 155612^2 .

It is a cyclic number.

It is not a de Polignac number, because 74046280985 - 2² = 74046280981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74046280981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7404628094 + ... + 7404628103.

It is an arithmetic number, because the mean of its divisors is an integer number (22213884297).

Almost surely, 2^74046280985 is an apocalyptic number.

It is an amenable number.

74046280985 is a deficient number, since it is larger than the sum of its proper divisors (14809256203).

74046280985 is a wasteful number, since it uses less digits than its factorization.

74046280985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14809256202.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 74046280985 in words is "seventy-four billion, forty-six million, two hundred eighty thousand, nine hundred eighty-five".