12611486938 has 4 divisors (see below), whose sum is σ = 18917230410. Its totient is φ = 6305743468.

The previous prime is 12611486917. The next prime is 12611486947. The reversal of 12611486938 is 83968411621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83968411621 = 2377 ⋅35325373.

It can be written as a sum of positive squares in only one way, i.e., 11259968769 + 1351518169 = 106113^2 + 36763^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12611486891 and 12611486900.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3152871733 + ... + 3152871736.

Almost surely, 2^12611486938 is an apocalyptic number.

12611486938 is a deficient number, since it is larger than the sum of its proper divisors (6305743472).

12611486938 is an equidigital number, since it uses as much as digits as its factorization.

12611486938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305743471.

The product of its digits is 497664, while the sum is 49.

The spelling of 12611486938 in words is "twelve billion, six hundred eleven million, four hundred eighty-six thousand, nine hundred thirty-eight".