73980840290 has 32 divisors (see below), whose sum is σ = 156302383104. Its totient is φ = 24679321920.

The previous prime is 73980840277. The next prime is 73980840293. The reversal of 73980840290 is 9204808937.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73980840293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14279426 + ... + 14284605.

It is an arithmetic number, because the mean of its divisors is an integer number (4884449472).

Almost surely, 2^73980840290 is an apocalyptic number.

73980840290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73980840290 is an abundant number, since it is smaller than the sum of its proper divisors (82321542814).

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

73980840290 is a wasteful number, since it uses less digits than its factorization.

73980840290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28564082.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 73980840290 in words is "seventy-three billion, nine hundred eighty million, eight hundred forty thousand, two hundred ninety".