74949589915201 has 4 divisors (see below), whose sum is σ = 74949671127892. Its totient is φ = 74949508702512.

The previous prime is 74949589915163. The next prime is 74949589915219. The reversal of 74949589915201 is 10251998594947.

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 20188405908801 + 54761184006400 = 4493151^2 + 7400080^2 .

It is a cyclic number.

It is not a de Polignac number, because 74949589915201 - 2¹⁷ = 74949589784129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74949589915271) 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, 39205926 + ... + 41073151.

It is an arithmetic number, because the mean of its divisors is an integer number (18737417781973).

Almost surely, 2^{74949589915201} is an apocalyptic number.

It is an amenable number.

74949589915201 is a deficient number, since it is larger than the sum of its proper divisors (81212691).

74949589915201 is an equidigital number, since it uses as much as digits as its factorization.

74949589915201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81212690.

The product of its (nonzero) digits is 293932800, while the sum is 73.

The spelling of 74949589915201 in words is "seventy-four trillion, nine hundred forty-nine billion, five hundred eighty-nine million, nine hundred fifteen thousand, two hundred one".