7782320901 has 8 divisors (see below), whose sum is σ = 10617740320. Its totient is φ = 5067557712.

The previous prime is 7782320873. The next prime is 7782320921. The reversal of 7782320901 is 1090232877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7782320901 - 2⁵ = 7782320869 is a prime.

It is a super-2 number, since 2×7782320901² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7782320901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7782320921) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 30163906 + ... + 30164163.

It is an arithmetic number, because the mean of its divisors is an integer number (1327217540).

Almost surely, 2^7782320901 is an apocalyptic number.

It is an amenable number.

7782320901 is a deficient number, since it is larger than the sum of its proper divisors (2835419419).

7782320901 is a wasteful number, since it uses less digits than its factorization.

7782320901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60328115.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 7782320901 is about 88217.4636962546. The cubic root of 7782320901 is about 1981.6930134983.

The spelling of 7782320901 in words is "seven billion, seven hundred eighty-two million, three hundred twenty thousand, nine hundred one".