40353531424477 has 2 divisors, whose sum is σ = 40353531424478. Its totient is φ = 40353531424476.

The previous prime is 40353531424229. The next prime is 40353531424517. The reversal of 40353531424477 is 77442413535304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40119695348121 + 233836076356 = 6334011^2 + 483566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40353531424477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40353531421477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20176765712238 + 20176765712239.

It is an arithmetic number, because the mean of its divisors is an integer number (20176765712239).

Almost surely, 2^{40353531424477} is an apocalyptic number.

It is an amenable number.

40353531424477 is a deficient number, since it is larger than the sum of its proper divisors (1).

40353531424477 is an equidigital number, since it uses as much as digits as its factorization.

40353531424477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16934400, while the sum is 52.

The spelling of 40353531424477 in words is "forty trillion, three hundred fifty-three billion, five hundred thirty-one million, four hundred twenty-four thousand, four hundred seventy-seven".