7782398973 has 8 divisors (see below), whose sum is σ = 11529480000. Its totient is φ = 5188265964.

The previous prime is 7782398951. The next prime is 7782399011. The reversal of 7782398973 is 3798932877.

It is not a de Polignac number, because 7782398973 - 2⁶ = 7782398909 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7782398973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7782393973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144118473 + ... + 144118526.

It is an arithmetic number, because the mean of its divisors is an integer number (1441185000).

Almost surely, 2^7782398973 is an apocalyptic number.

It is an amenable number.

7782398973 is a deficient number, since it is larger than the sum of its proper divisors (3747081027).

7782398973 is a wasteful number, since it uses less digits than its factorization.

7782398973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288237008 (or 288237002 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 63.

The square root of 7782398973 is about 88217.9061925639. The cubic root of 7782398973 is about 1981.6996402370.

The spelling of 7782398973 in words is "seven billion, seven hundred eighty-two million, three hundred ninety-eight thousand, nine hundred seventy-three".