40361020457 has 2 divisors, whose sum is σ = 40361020458. Its totient is φ = 40361020456.

The previous prime is 40361020451. The next prime is 40361020459. The reversal of 40361020457 is 75402016304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24604745881 + 15756274576 = 156859^2 + 125524^2 .

It is a cyclic number.

It is not a de Polignac number, because 40361020457 - 2³² = 36066053161 is a prime.

Together with 40361020459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40361020451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20180510228 + 20180510229.

It is an arithmetic number, because the mean of its divisors is an integer number (20180510229).

Almost surely, 2^40361020457 is an apocalyptic number.

It is an amenable number.

40361020457 is a deficient number, since it is larger than the sum of its proper divisors (1).

40361020457 is an equidigital number, since it uses as much as digits as its factorization.

40361020457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 40361020457 in words is "forty billion, three hundred sixty-one million, twenty thousand, four hundred fifty-seven".