72666674475 has 48 divisors (see below), whose sum is σ = 123496449888. Its totient is φ = 37675376640.

The previous prime is 72666674461. The next prime is 72666674491. The reversal of 72666674475 is 57447666627.

It is not a de Polignac number, because 72666674475 - 2⁴ = 72666674459 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3366417 + ... + 3387933.

It is an arithmetic number, because the mean of its divisors is an integer number (2572842706).

Almost surely, 2^72666674475 is an apocalyptic number.

72666674475 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72666674475 is a deficient number, since it is larger than the sum of its proper divisors (50829775413).

72666674475 is a wasteful number, since it uses less digits than its factorization.

72666674475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22784 (or 22779 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 60.

The spelling of 72666674475 in words is "seventy-two billion, six hundred sixty-six million, six hundred seventy-four thousand, four hundred seventy-five".