2319128480772 has 144 divisors (see below), whose sum is σ = 6100396323840. Its totient is φ = 770372542368.

The previous prime is 2319128480729. The next prime is 2319128480789. The reversal of 2319128480772 is 2770848219132.

2319128480772 is a `hidden beast` number, since 2 + 3 + 1 + 91 + 2 + 8 + 480 + 7 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 423273129 + ... + 423278607.

It is an arithmetic number, because the mean of its divisors is an integer number (42363863360).

Almost surely, 2^{2319128480772} 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 2319128480772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3050198161920).

2319128480772 is an abundant number, since it is smaller than the sum of its proper divisors (3781267843068).

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

2319128480772 is a wasteful number, since it uses less digits than its factorization.

2319128480772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6924 (or 6910 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 2319128480772 in words is "two trillion, three hundred nineteen billion, one hundred twenty-eight million, four hundred eighty thousand, seven hundred seventy-two".