382778857274 has 32 divisors (see below), whose sum is σ = 670140768960. Its totient is φ = 162130809600.

The previous prime is 382778857183. The next prime is 382778857297. The reversal of 382778857274 is 472758877283.

It is a happy number.

It is a super-2 number, since 2×382778857274² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7480559 + ... + 7531554.

It is an arithmetic number, because the mean of its divisors is an integer number (20941899030).

Almost surely, 2^382778857274 is an apocalyptic number.

382778857274 is a deficient number, since it is larger than the sum of its proper divisors (287361911686).

382778857274 is a wasteful number, since it uses less digits than its factorization.

382778857274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15012206.

The product of its digits is 295034880, while the sum is 68.

The spelling of 382778857274 in words is "three hundred eighty-two billion, seven hundred seventy-eight million, eight hundred fifty-seven thousand, two hundred seventy-four".