73219312147440 has 80 divisors (see below), whose sum is σ = 238926176496000. Its totient is φ = 18497510436096.

The previous prime is 73219312147393. The next prime is 73219312147519. The reversal of 73219312147440 is 4474121391237.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×73219312147440² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 73219312147440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8028428790 + ... + 8028437909.

It is an arithmetic number, because the mean of its divisors is an integer number (2986577206200).

Almost surely, 2^{73219312147440} is an apocalyptic number.

It is an amenable number.

73219312147440 is an abundant number, since it is smaller than the sum of its proper divisors (165706864348560).

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

73219312147440 is a wasteful number, since it uses less digits than its factorization.

73219312147440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16056866734 (or 16056866728 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 73219312147440 in words is "seventy-three trillion, two hundred nineteen billion, three hundred twelve million, one hundred forty-seven thousand, four hundred forty".