2389780426964 has 24 divisors (see below), whose sum is σ = 4794000633408. Its totient is φ = 1021097373120.

The previous prime is 2389780426909. The next prime is 2389780426973. The reversal of 2389780426964 is 4696240879832.

It is a super-2 number, since 2×2389780426964² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2389780426894 and 2389780426903.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 128917169 + ... + 128935704.

It is an arithmetic number, because the mean of its divisors is an integer number (199750026392).

Almost surely, 2^{2389780426964} is an apocalyptic number.

It is an amenable number.

2389780426964 is an abundant number, since it is smaller than the sum of its proper divisors (2404220206444).

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

2389780426964 is a wasteful number, since it uses less digits than its factorization.

2389780426964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257853215 (or 257853213 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 68.

The spelling of 2389780426964 in words is "two trillion, three hundred eighty-nine billion, seven hundred eighty million, four hundred twenty-six thousand, nine hundred sixty-four".