1068141638 has 4 divisors (see below), whose sum is σ = 1602212460. Its totient is φ = 534070818.

The previous prime is 1068141623. The next prime is 1068141647. The reversal of 1068141638 is 8361418601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8361418601 = 17 ⋅491848153.

It is a super-2 number, since 2×1068141638² = 2281853117658646088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267035408 + ... + 267035411.

It is an arithmetic number, because the mean of its divisors is an integer number (400553115).

Almost surely, 2^1068141638 is an apocalyptic number.

1068141638 is a deficient number, since it is larger than the sum of its proper divisors (534070822).

1068141638 is an equidigital number, since it uses as much as digits as its factorization.

1068141638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534070821.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1068141638 is about 32682.4362311013. The cubic root of 1068141638 is about 1022.2166448017.

The spelling of 1068141638 in words is "one billion, sixty-eight million, one hundred forty-one thousand, six hundred thirty-eight".