308870381782 has 12 divisors (see below), whose sum is σ = 484325108820. Its totient is φ = 147720616868.

The previous prime is 308870381773. The next prime is 308870381819. The reversal of 308870381782 is 287183078803.

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 5 ways as a sum of consecutive naturals, for example, 145967932 + ... + 145970047.

It is an arithmetic number, because the mean of its divisors is an integer number (40360425735).

Almost surely, 2^308870381782 is an apocalyptic number.

308870381782 is a deficient number, since it is larger than the sum of its proper divisors (175454727038).

308870381782 is a wasteful number, since it uses less digits than its factorization.

308870381782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291938027 (or 291938004 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 55.

The spelling of 308870381782 in words is "three hundred eight billion, eight hundred seventy million, three hundred eighty-one thousand, seven hundred eighty-two".