1012415678 has 4 divisors (see below), whose sum is σ = 1518623520. Its totient is φ = 506207838.

The previous prime is 1012415659. The next prime is 1012415683. The reversal of 1012415678 is 8765142101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8765142101 = 103 ⋅85098467.

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 as a sum of consecutive naturals, namely, 253103918 + ... + 253103921.

It is an arithmetic number, because the mean of its divisors is an integer number (379655880).

Almost surely, 2^1012415678 is an apocalyptic number.

1012415678 is a deficient number, since it is larger than the sum of its proper divisors (506207842).

1012415678 is an equidigital number, since it uses as much as digits as its factorization.

1012415678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506207841.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 1012415678 is about 31818.4801334067. The cubic root of 1012415678 is about 1004.1215488308.

Adding to 1012415678 its reverse (8765142101), we get a palindrome (9777557779).

The spelling of 1012415678 in words is "one billion, twelve million, four hundred fifteen thousand, six hundred seventy-eight".