10312611986 has 4 divisors (see below), whose sum is σ = 15468917982. Its totient is φ = 5156305992.

The previous prime is 10312611977. The next prime is 10312612067. The reversal of 10312611986 is 68911621301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68911621301 = 103 ⋅669044867.

It can be written as a sum of positive squares in only one way, i.e., 7390668961 + 2921943025 = 85969^2 + 54055^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578152995 + ... + 2578152998.

Almost surely, 2^10312611986 is an apocalyptic number.

10312611986 is a deficient number, since it is larger than the sum of its proper divisors (5156305996).

10312611986 is an equidigital number, since it uses as much as digits as its factorization.

10312611986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156305995.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 10312611986 in words is "ten billion, three hundred twelve million, six hundred eleven thousand, nine hundred eighty-six".