1012613868 has 36 divisors (see below), whose sum is σ = 2925329680. Its totient is φ = 289318176.

The previous prime is 1012613839. The next prime is 1012613869. The reversal of 1012613868 is 8683162101.

1012613868 is a `hidden beast` number, since 10 + 1 + 261 + 386 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1012613869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2008903 + ... + 2009406.

Almost surely, 2^1012613868 is an apocalyptic number.

1012613868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1012613868 is an abundant number, since it is smaller than the sum of its proper divisors (1912715812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012613868 is a wasteful number, since it uses less digits than its factorization.

1012613868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018326 (or 4018321 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1012613868 is about 31821.5943660905. The cubic root of 1012613868 is about 1004.1870666708.

Adding to 1012613868 its reverse (8683162101), we get a palindrome (9695775969).

The spelling of 1012613868 in words is "one billion, twelve million, six hundred thirteen thousand, eight hundred sixty-eight".