76561012 has 24 divisors (see below), whose sum is σ = 146416032. Its totient is φ = 34740000.

The previous prime is 76561007. The next prime is 76561031. The reversal of 76561012 is 21016567.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32887 + ... + 35137.

It is an arithmetic number, because the mean of its divisors is an integer number (6100668).

Almost surely, 2^76561012 is an apocalyptic number.

It is an amenable number.

76561012 is a deficient number, since it is larger than the sum of its proper divisors (69855020).

76561012 is a wasteful number, since it uses less digits than its factorization.

76561012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 76561012 is about 8749.9149710154. The cubic root of 76561012 is about 424.6220621671.

Adding to 76561012 its reverse (21016567), we get a palindrome (97577579).

It can be divided in two parts, 7656 and 1012, that added together give a palindrome (8668).

The spelling of 76561012 in words is "seventy-six million, five hundred sixty-one thousand, twelve".