74670547457 has 4 divisors (see below), whose sum is σ = 81458779056. Its totient is φ = 67882315860.

The previous prime is 74670547453. The next prime is 74670547463. The reversal of 74670547457 is 75474507647.

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 not a de Polignac number, because 74670547457 - 2² = 74670547453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74670547453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3394115783 + ... + 3394115804.

It is an arithmetic number, because the mean of its divisors is an integer number (20364694764).

Almost surely, 2^74670547457 is an apocalyptic number.

It is an amenable number.

74670547457 is a deficient number, since it is larger than the sum of its proper divisors (6788231599).

74670547457 is a wasteful number, since it uses less digits than its factorization.

74670547457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788231598.

The product of its (nonzero) digits is 23049600, while the sum is 56.

The spelling of 74670547457 in words is "seventy-four billion, six hundred seventy million, five hundred forty-seven thousand, four hundred fifty-seven".