74490400655 has 8 divisors (see below), whose sum is σ = 97514706384. Its totient is φ = 54174836800.

The previous prime is 74490400651. The next prime is 74490400661. The reversal of 74490400655 is 55600409447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74490400655 - 2² = 74490400651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74490400651) 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 7 ways as a sum of consecutive naturals, for example, 677185406 + ... + 677185515.

It is an arithmetic number, because the mean of its divisors is an integer number (12189338298).

Almost surely, 2^74490400655 is an apocalyptic number.

74490400655 is a deficient number, since it is larger than the sum of its proper divisors (23024305729).

74490400655 is a wasteful number, since it uses less digits than its factorization.

74490400655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354370937.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 74490400655 in words is "seventy-four billion, four hundred ninety million, four hundred thousand, six hundred fifty-five".