7891310012 has 6 divisors (see below), whose sum is σ = 13809792528. Its totient is φ = 3945655004.

The previous prime is 7891309961. The next prime is 7891310023. The reversal of 7891310012 is 2100131987.

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, 986413748 + ... + 986413755.

It is an arithmetic number, because the mean of its divisors is an integer number (2301632088).

Almost surely, 2^7891310012 is an apocalyptic number.

It is an amenable number.

7891310012 is a deficient number, since it is larger than the sum of its proper divisors (5918482516).

7891310012 is a wasteful number, since it uses less digits than its factorization.

7891310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972827507 (or 1972827505 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 7891310012 is about 88833.0457206101. The cubic root of 7891310012 is about 1990.9011694144.

Adding to 7891310012 its reverse (2100131987), we get a palindrome (9991441999).

The spelling of 7891310012 in words is "seven billion, eight hundred ninety-one million, three hundred ten thousand, twelve".