74519535663 has 6 divisors (see below), whose sum is σ = 107639329304. Its totient is φ = 49679690436.

The previous prime is 74519535509. The next prime is 74519535677. The reversal of 74519535663 is 36653591547.

74519535663 is a `hidden beast` number, since 7 + 45 + 1 + 9 + 535 + 6 + 63 = 666.

It is not a de Polignac number, because 74519535663 - 2¹⁸ = 74519273519 is a prime.

It is a super-2 number, since 2×74519535663² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74519545663) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 4139974195 + ... + 4139974212.

Almost surely, 2^74519535663 is an apocalyptic number.

74519535663 is a deficient number, since it is larger than the sum of its proper divisors (33119793641).

74519535663 is a wasteful number, since it uses less digits than its factorization.

74519535663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8279948413 (or 8279948410 counting only the distinct ones).

The product of its digits is 10206000, while the sum is 54.

The spelling of 74519535663 in words is "seventy-four billion, five hundred nineteen million, five hundred thirty-five thousand, six hundred sixty-three".