387666822274 has 8 divisors (see below), whose sum is σ = 615706129548. Its totient is φ = 182431445760.

The previous prime is 387666822233. The next prime is 387666822281. The reversal of 387666822274 is 472228666783.

It can be written as a sum of positive squares in 2 ways, for example, as 382189786225 + 5477036049 = 618215^2 + 74007^2 .

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

It is a super-2 number, since 2×387666822274² (a number of 24 digits) contains 22 as substring.

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, 5700982647 + ... + 5700982714.

Almost surely, 2^387666822274 is an apocalyptic number.

387666822274 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

387666822274 is a deficient number, since it is larger than the sum of its proper divisors (228039307274).

387666822274 is a wasteful number, since it uses less digits than its factorization.

387666822274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401965380.

The product of its digits is 65028096, while the sum is 61.

The spelling of 387666822274 in words is "three hundred eighty-seven billion, six hundred sixty-six million, eight hundred twenty-two thousand, two hundred seventy-four".