74278475898740 has 12 divisors (see below), whose sum is σ = 155984799387396. Its totient is φ = 29711390359488.

The previous prime is 74278475898721. The next prime is 74278475898751. The reversal of 74278475898740 is 4789857487247.

It can be written as a sum of positive squares in 2 ways, for example, as 28126072773604 + 46152403125136 = 5303402^2 + 6793556^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1856961897449 + ... + 1856961897488.

It is an arithmetic number, because the mean of its divisors is an integer number (12998733282283).

Almost surely, 2^{74278475898740} is an apocalyptic number.

It is an amenable number.

74278475898740 is an abundant number, since it is smaller than the sum of its proper divisors (81706323488656).

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

74278475898740 is a wasteful number, since it uses less digits than its factorization.

74278475898740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713923794946 (or 3713923794944 counting only the distinct ones).

The product of its (nonzero) digits is 7080837120, while the sum is 80.

The spelling of 74278475898740 in words is "seventy-four trillion, two hundred seventy-eight billion, four hundred seventy-five million, eight hundred ninety-eight thousand, seven hundred forty".