73739339889820 has 96 divisors (see below), whose sum is σ = 170399907256320. Its totient is φ = 26581551075840.

The previous prime is 73739339889791. The next prime is 73739339889847. The reversal of 73739339889820 is 2898893393737.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19969297 + ... + 23372023.

It is an arithmetic number, because the mean of its divisors is an integer number (1774999033920).

Almost surely, 2^{73739339889820} 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 73739339889820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85199953628160).

73739339889820 is an abundant number, since it is smaller than the sum of its proper divisors (96660567366500).

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

73739339889820 is a wasteful number, since it uses less digits than its factorization.

73739339889820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403603 (or 3403601 counting only the distinct ones).

The product of its (nonzero) digits is 2962842624, while the sum is 79.

The spelling of 73739339889820 in words is "seventy-three trillion, seven hundred thirty-nine billion, three hundred thirty-nine million, eight hundred eighty-nine thousand, eight hundred twenty".