74706266323440 has 800 divisors, whose sum is σ = 279065127528000. Its totient is φ = 18454909943808.

The previous prime is 74706266323421. The next prime is 74706266323463. The reversal of 74706266323440 is 4432366260747.

It is a happy number.

74706266323440 is a `hidden beast` number, since 7 + 4 + 7 + 0 + 6 + 266 + 32 + 344 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 4012789012 + ... + 4012807628.

It is an arithmetic number, because the mean of its divisors is an integer number (348831409410).

Almost surely, 2^{74706266323440} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74706266323440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139532563764000).

74706266323440 is an abundant number, since it is smaller than the sum of its proper divisors (204358861204560).

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

74706266323440 is a wasteful number, since it uses less digits than its factorization.

74706266323440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19231 (or 19216 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 54.

The spelling of 74706266323440 in words is "seventy-four trillion, seven hundred six billion, two hundred sixty-six million, three hundred twenty-three thousand, four hundred forty".