74527472493 has 20 divisors (see below), whose sum is σ = 116171650848. Its totient is φ = 47524763880.

The previous prime is 74527472477. The next prime is 74527472519. The reversal of 74527472493 is 39427472547.

74527472493 is a `hidden beast` number, since 7 + 4 + 527 + 4 + 7 + 24 + 93 = 666.

It is not a de Polignac number, because 74527472493 - 2⁴ = 74527472477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74527472293) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20000143 + ... + 20003868.

Almost surely, 2^74527472493 is an apocalyptic number.

It is an amenable number.

74527472493 is a deficient number, since it is larger than the sum of its proper divisors (41644178355).

74527472493 is a wasteful number, since it uses less digits than its factorization.

74527472493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40004046 (or 40004037 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 54.

Adding to 74527472493 its sum of digits (54), we get a palindrome (74527472547).

The spelling of 74527472493 in words is "seventy-four billion, five hundred twenty-seven million, four hundred seventy-two thousand, four hundred ninety-three".