40692764549 has 2 divisors, whose sum is σ = 40692764550. Its totient is φ = 40692764548.

The previous prime is 40692764509. The next prime is 40692764597. The reversal of 40692764549 is 94546729604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40057220449 + 635544100 = 200143^2 + 25210^2 .

It is a cyclic number.

It is not a de Polignac number, because 40692764549 - 2⁸ = 40692764293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40692764494 and 40692764503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40692764509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20346382274 + 20346382275.

It is an arithmetic number, because the mean of its divisors is an integer number (20346382275).

Almost surely, 2^40692764549 is an apocalyptic number.

It is an amenable number.

40692764549 is a deficient number, since it is larger than the sum of its proper divisors (1).

40692764549 is an equidigital number, since it uses as much as digits as its factorization.

40692764549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 40692764549 in words is "forty billion, six hundred ninety-two million, seven hundred sixty-four thousand, five hundred forty-nine".