40611474557 has 2 divisors, whose sum is σ = 40611474558. Its totient is φ = 40611474556.

The previous prime is 40611474499. The next prime is 40611474559. The reversal of 40611474557 is 75547411604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40586534521 + 24940036 = 201461^2 + 4994^2 .

It is a cyclic number.

It is not a de Polignac number, because 40611474557 - 2⁶ = 40611474493 is a prime.

Together with 40611474559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40611474559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20305737278 + 20305737279.

It is an arithmetic number, because the mean of its divisors is an integer number (20305737279).

Almost surely, 2^40611474557 is an apocalyptic number.

It is an amenable number.

40611474557 is a deficient number, since it is larger than the sum of its proper divisors (1).

40611474557 is an equidigital number, since it uses as much as digits as its factorization.

40611474557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 40611474557 in words is "forty billion, six hundred eleven million, four hundred seventy-four thousand, five hundred fifty-seven".