74020012783320 has 64 divisors (see below), whose sum is σ = 222319151889120. Its totient is φ = 19715637761024.

The previous prime is 74020012783309. The next prime is 74020012783331. The reversal of 74020012783320 is 2338721002047.

It is an interprime number because it is at equal distance from previous prime (74020012783309) and next prime (74020012783331).

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, 359776647 + ... + 359982326.

Almost surely, 2^{74020012783320} is an apocalyptic number.

It is an amenable number.

74020012783320 is an abundant number, since it is smaller than the sum of its proper divisors (148299139105800).

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

74020012783320 is a wasteful number, since it uses less digits than its factorization.

74020012783320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719759844 (or 719759840 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

Adding to 74020012783320 its reverse (2338721002047), we get a palindrome (76358733785367).

The spelling of 74020012783320 in words is "seventy-four trillion, twenty billion, twelve million, seven hundred eighty-three thousand, three hundred twenty".