73452493638 has 24 divisors (see below), whose sum is σ = 159492308976. Its totient is φ = 24431050800.

The previous prime is 73452493607. The next prime is 73452493651. The reversal of 73452493638 is 83639425437.

73452493638 is a `hidden beast` number, since 7 + 34 + 5 + 249 + 363 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4417618 + ... + 4434213.

It is an arithmetic number, because the mean of its divisors is an integer number (6645512874).

Almost surely, 2^73452493638 is an apocalyptic number.

73452493638 is an abundant number, since it is smaller than the sum of its proper divisors (86039815338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73452493638 is a wasteful number, since it uses less digits than its factorization.

73452493638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8852300 (or 8852297 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 73452493638 in words is "seventy-three billion, four hundred fifty-two million, four hundred ninety-three thousand, six hundred thirty-eight".