74204530127257 has 4 divisors (see below), whose sum is σ = 74205670064400. Its totient is φ = 74203390190116.

The previous prime is 74204530127243. The next prime is 74204530127261. The reversal of 74204530127257 is 75272103540247.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74204530127257 is a prime.

It is a super-2 number, since 2×74204530127257² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74204530127257.

It is not an unprimeable number, because it can be changed into a prime (74204530127237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569870923 + ... + 570001120.

It is an arithmetic number, because the mean of its divisors is an integer number (18551417516100).

Almost surely, 2^{74204530127257} is an apocalyptic number.

It is an amenable number.

74204530127257 is a deficient number, since it is larger than the sum of its proper divisors (1139937143).

74204530127257 is a wasteful number, since it uses less digits than its factorization.

74204530127257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139937142.

The product of its (nonzero) digits is 3292800, while the sum is 49.

The spelling of 74204530127257 in words is "seventy-four trillion, two hundred four billion, five hundred thirty million, one hundred twenty-seven thousand, two hundred fifty-seven".