381850683778 has 8 divisors (see below), whose sum is σ = 576086870268. Its totient is φ = 189821727024.

The previous prime is 381850683727. The next prime is 381850683829. The reversal of 381850683778 is 877386058183.

It is an interprime number because it is at equal distance from previous prime (381850683727) and next prime (381850683829).

It can be written as a sum of positive squares in 2 ways, for example, as 287818301169 + 94032382609 = 536487^2 + 306647^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551807001 + ... + 551807692.

Almost surely, 2^381850683778 is an apocalyptic number.

381850683778 is a deficient number, since it is larger than the sum of its proper divisors (194236186490).

381850683778 is a wasteful number, since it uses less digits than its factorization.

381850683778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103614868.

The product of its (nonzero) digits is 54190080, while the sum is 64.

The spelling of 381850683778 in words is "three hundred eighty-one billion, eight hundred fifty million, six hundred eighty-three thousand, seven hundred seventy-eight".