40621791053 has 2 divisors, whose sum is σ = 40621791054. Its totient is φ = 40621791052.

The previous prime is 40621791037. The next prime is 40621791071. The reversal of 40621791053 is 35019712604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38526623524 + 2095167529 = 196282^2 + 45773^2 .

It is a cyclic number.

It is not a de Polignac number, because 40621791053 - 2⁴ = 40621791037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40621790998 and 40621791016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40621791013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20310895526 + 20310895527.

It is an arithmetic number, because the mean of its divisors is an integer number (20310895527).

Almost surely, 2^40621791053 is an apocalyptic number.

It is an amenable number.

40621791053 is a deficient number, since it is larger than the sum of its proper divisors (1).

40621791053 is an equidigital number, since it uses as much as digits as its factorization.

40621791053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 40621791053 in words is "forty billion, six hundred twenty-one million, seven hundred ninety-one thousand, fifty-three".