74357931387840 has 112 divisors (see below), whose sum is σ = 236444683685760. Its totient is φ = 19798692336640.

The previous prime is 74357931387833. The next prime is 74357931387851. The reversal of 74357931387840 is 4878313975347.

It is a super-3 number, since 3×74357931387840³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 58135326 + ... + 59400605.

Almost surely, 2^{74357931387840} is an apocalyptic number.

It is an amenable number.

74357931387840 is an abundant number, since it is smaller than the sum of its proper divisors (162086752297920).

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

74357931387840 is a wasteful number, since it uses less digits than its factorization.

74357931387840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117536610 (or 117536600 counting only the distinct ones).

The product of its (nonzero) digits is 426746880, while the sum is 69.

The spelling of 74357931387840 in words is "seventy-four trillion, three hundred fifty-seven billion, nine hundred thirty-one million, three hundred eighty-seven thousand, eight hundred forty".