73709187499464 has 128 divisors (see below), whose sum is σ = 212985567521280. Its totient is φ = 21008844723200.

The previous prime is 73709187499457. The next prime is 73709187499487. The reversal of 73709187499464 is 46499478190737.

It is a super-2 number, since 2×73709187499464² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73709187499464.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1823527 + ... + 12277769.

It is an arithmetic number, because the mean of its divisors is an integer number (1663949746260).

Almost surely, 2^{73709187499464} 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 73709187499464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106492783760640).

73709187499464 is an abundant number, since it is smaller than the sum of its proper divisors (139276380021816).

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

73709187499464 is a wasteful number, since it uses less digits than its factorization.

73709187499464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10455851 (or 10455847 counting only the distinct ones).

The product of its (nonzero) digits is 2304433152, while the sum is 78.

The spelling of 73709187499464 in words is "seventy-three trillion, seven hundred nine billion, one hundred eighty-seven million, four hundred ninety-nine thousand, four hundred sixty-four".