73702212012 has 672 divisors, whose sum is σ = 247932062784. Its totient is φ = 18811699200.

The previous prime is 73702212011. The next prime is 73702212019. The reversal of 73702212012 is 21021220737.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (73702212011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 262285312 + ... + 262285592.

It is an arithmetic number, because the mean of its divisors is an integer number (368946522).

Almost surely, 2^73702212012 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 73702212012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123966031392).

73702212012 is an abundant number, since it is smaller than the sum of its proper divisors (174229850772).

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

73702212012 is a wasteful number, since it uses less digits than its factorization.

73702212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

Adding to 73702212012 its reverse (21021220737), we get a palindrome (94723432749).

The spelling of 73702212012 in words is "seventy-three billion, seven hundred two million, two hundred twelve thousand, twelve".