74538964553 has 4 divisors (see below), whose sum is σ = 75651486480. Its totient is φ = 73426442628.

The previous prime is 74538964547. The next prime is 74538964573. The reversal of 74538964553 is 35546983547.

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: 35546983547 = 61561 ⋅577427.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74538964553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74538964492 and 74538964501.

It is not an unprimeable number, because it can be changed into a prime (74538964573) 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, 556260863 + ... + 556260996.

It is an arithmetic number, because the mean of its divisors is an integer number (18912871620).

Almost surely, 2^74538964553 is an apocalyptic number.

It is an amenable number.

74538964553 is a deficient number, since it is larger than the sum of its proper divisors (1112521927).

74538964553 is a wasteful number, since it uses less digits than its factorization.

74538964553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112521926.

The product of its digits is 54432000, while the sum is 59.

The spelling of 74538964553 in words is "seventy-four billion, five hundred thirty-eight million, nine hundred sixty-four thousand, five hundred fifty-three".