74524442051 has 4 divisors (see below), whose sum is σ = 74526463704. Its totient is φ = 74522420400.

The previous prime is 74524441987. The next prime is 74524442093. The reversal of 74524442051 is 15024442547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15024442547 = 31 ⋅484659437.

It is a cyclic number.

It is not a de Polignac number, because 74524442051 - 2⁶ = 74524441987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74524441996 and 74524442014.

It is not an unprimeable number, because it can be changed into a prime (74524492051) 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, 954485 + ... + 1029606.

It is an arithmetic number, because the mean of its divisors is an integer number (18631615926).

Almost surely, 2^74524442051 is an apocalyptic number.

74524442051 is a deficient number, since it is larger than the sum of its proper divisors (2021653).

74524442051 is a wasteful number, since it uses less digits than its factorization.

74524442051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021652.

The product of its (nonzero) digits is 179200, while the sum is 38.

Adding to 74524442051 its reverse (15024442547), we get a palindrome (89548884598).

The spelling of 74524442051 in words is "seventy-four billion, five hundred twenty-four million, four hundred forty-two thousand, fifty-one".