75404050249 has 8 divisors (see below), whose sum is σ = 82938791520. Its totient is φ = 68549135380.

The previous prime is 75404050213. The next prime is 75404050261. The reversal of 75404050249 is 94205040457.

It is not a de Polignac number, because 75404050249 - 2²¹ = 75401953097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75404050279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28324759 + ... + 28327420.

It is an arithmetic number, because the mean of its divisors is an integer number (10367348940).

Almost surely, 2^75404050249 is an apocalyptic number.

It is an amenable number.

75404050249 is a deficient number, since it is larger than the sum of its proper divisors (7534741271).

75404050249 is an equidigital number, since it uses as much as digits as its factorization.

75404050249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56652212 (or 56652190 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 75404050249 in words is "seventy-five billion, four hundred four million, fifty thousand, two hundred forty-nine".