1012578079 has 4 divisors (see below), whose sum is σ = 1045241920. Its totient is φ = 979914240.

The previous prime is 1012578037. The next prime is 1012578103. The reversal of 1012578079 is 9708752101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012578079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012578019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16331874 + ... + 16331935.

It is an arithmetic number, because the mean of its divisors is an integer number (261310480).

Almost surely, 2^1012578079 is an apocalyptic number.

1012578079 is a deficient number, since it is larger than the sum of its proper divisors (32663841).

1012578079 is an equidigital number, since it uses as much as digits as its factorization.

1012578079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32663840.

The product of its (nonzero) digits is 35280, while the sum is 40.

The square root of 1012578079 is about 31821.0320228619. The cubic root of 1012578079 is about 1004.1752361414.

The spelling of 1012578079 in words is "one billion, twelve million, five hundred seventy-eight thousand, seventy-nine".