40455454142261 has 2 divisors, whose sum is σ = 40455454142262. Its totient is φ = 40455454142260.

The previous prime is 40455454142221. The next prime is 40455454142267. The reversal of 40455454142261 is 16224145455404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25737297361636 + 14718156780625 = 5073194^2 + 3836425^2 .

It is a cyclic number.

It is not a de Polignac number, because 40455454142261 - 2³⁴ = 40438274273077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40455454142267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20227727071130 + 20227727071131.

It is an arithmetic number, because the mean of its divisors is an integer number (20227727071131).

Almost surely, 2^{40455454142261} is an apocalyptic number.

It is an amenable number.

40455454142261 is a deficient number, since it is larger than the sum of its proper divisors (1).

40455454142261 is an equidigital number, since it uses as much as digits as its factorization.

40455454142261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072000, while the sum is 47.

Adding to 40455454142261 its reverse (16224145455404), we get a palindrome (56679599597665).

The spelling of 40455454142261 in words is "forty trillion, four hundred fifty-five billion, four hundred fifty-four million, one hundred forty-two thousand, two hundred sixty-one".