74739432509616 has 320 divisors, whose sum is σ = 235342587110400. Its totient is φ = 19951854747648.

The previous prime is 74739432509603. The next prime is 74739432509627. The reversal of 74739432509616 is 61690523493747.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 606250030 + ... + 606373298.

It is an arithmetic number, because the mean of its divisors is an integer number (735445584720).

Almost surely, 2^{74739432509616} 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 74739432509616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117671293555200).

74739432509616 is an abundant number, since it is smaller than the sum of its proper divisors (160603154600784).

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

74739432509616 is a wasteful number, since it uses less digits than its factorization.

74739432509616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124076 (or 124070 counting only the distinct ones).

The product of its (nonzero) digits is 205752960, while the sum is 66.

The spelling of 74739432509616 in words is "seventy-four trillion, seven hundred thirty-nine billion, four hundred thirty-two million, five hundred nine thousand, six hundred sixteen".