74850405648 has 40 divisors (see below), whose sum is σ = 194365455648. Its totient is φ = 24820856832.

The previous prime is 74850405647. The next prime is 74850405673. The reversal of 74850405648 is 84650405847.

It is a self number, because there is not a number n which added to its sum of digits gives 74850405648.

It is not an unprimeable number, because it can be changed into a prime (74850405647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4030590 + ... + 4049117.

Almost surely, 2^74850405648 is an apocalyptic number.

It is an amenable number.

74850405648 is an abundant number, since it is smaller than the sum of its proper divisors (119515050000).

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

74850405648 is a wasteful number, since it uses less digits than its factorization.

74850405648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8079911 (or 8079905 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 51.

The spelling of 74850405648 in words is "seventy-four billion, eight hundred fifty million, four hundred five thousand, six hundred forty-eight".