74785584942 has 48 divisors (see below), whose sum is σ = 170937196560. Its totient is φ = 23564774016.

The previous prime is 74785584941. The next prime is 74785584943. The reversal of 74785584942 is 24948558747.

It is a happy number.

74785584942 is a `hidden beast` number, since 7 + 4 + 7 + 8 + 5 + 584 + 9 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (74785584941) and next prime (74785584943).

It is a self number, because there is not a number n which added to its sum of digits gives 74785584942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74785584941) 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 23 ways as a sum of consecutive naturals, for example, 82953 + ... + 395540.

It is an arithmetic number, because the mean of its divisors is an integer number (3561191595).

Almost surely, 2^74785584942 is an apocalyptic number.

74785584942 is an abundant number, since it is smaller than the sum of its proper divisors (96151611618).

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

74785584942 is a wasteful number, since it uses less digits than its factorization.

74785584942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478977 (or 478974 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 63.

The spelling of 74785584942 in words is "seventy-four billion, seven hundred eighty-five million, five hundred eighty-four thousand, nine hundred forty-two".