11612436973 has 2 divisors, whose sum is σ = 11612436974. Its totient is φ = 11612436972.

The previous prime is 11612436961. The next prime is 11612437007. The reversal of 11612436973 is 37963421611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10932166249 + 680270724 = 104557^2 + 26082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11612436973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11612436943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5806218486 + 5806218487.

It is an arithmetic number, because the mean of its divisors is an integer number (5806218487).

Almost surely, 2^11612436973 is an apocalyptic number.

It is an amenable number.

11612436973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11612436973 is an equidigital number, since it uses as much as digits as its factorization.

11612436973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The spelling of 11612436973 in words is "eleven billion, six hundred twelve million, four hundred thirty-six thousand, nine hundred seventy-three".