74589680340 has 144 divisors (see below), whose sum is σ = 269820165888. Its totient is φ = 16307799552.

The previous prime is 74589680329. The next prime is 74589680393. The reversal of 74589680340 is 4308698547.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1257937 + ... + 1315896.

It is an arithmetic number, because the mean of its divisors is an integer number (1873751152).

Almost surely, 2^74589680340 is an apocalyptic number.

74589680340 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74589680340 is an abundant number, since it is smaller than the sum of its proper divisors (195230485548).

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

74589680340 is a wasteful number, since it uses less digits than its factorization.

74589680340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573878 (or 2573873 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 74589680340 in words is "seventy-four billion, five hundred eighty-nine million, six hundred eighty thousand, three hundred forty".