11471923637 has 2 divisors, whose sum is σ = 11471923638. Its totient is φ = 11471923636.

The previous prime is 11471923627. The next prime is 11471923651. The reversal of 11471923637 is 73632917411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11115695761 + 356227876 = 105431^2 + 18874^2 .

It is a cyclic number.

It is not a de Polignac number, because 11471923637 - 2⁸ = 11471923381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11471923627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5735961818 + 5735961819.

It is an arithmetic number, because the mean of its divisors is an integer number (5735961819).

Almost surely, 2^11471923637 is an apocalyptic number.

It is an amenable number.

11471923637 is a deficient number, since it is larger than the sum of its proper divisors (1).

11471923637 is an equidigital number, since it uses as much as digits as its factorization.

11471923637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The spelling of 11471923637 in words is "eleven billion, four hundred seventy-one million, nine hundred twenty-three thousand, six hundred thirty-seven".