40010621311253 has 4 divisors (see below), whose sum is σ = 40012836634188. Its totient is φ = 40008405988320.

The previous prime is 40010621311169. The next prime is 40010621311291. The reversal of 40010621311253 is 35211312601004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17952024942289 + 22058596368964 = 4236983^2 + 4696658^2 .

It is a cyclic number.

It is not a de Polignac number, because 40010621311253 - 2¹⁰ = 40010621310229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40010621311853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107634376 + ... + 1107670497.

It is an arithmetic number, because the mean of its divisors is an integer number (10003209158547).

Almost surely, 2^{40010621311253} is an apocalyptic number.

It is an amenable number.

40010621311253 is a deficient number, since it is larger than the sum of its proper divisors (2215322935).

40010621311253 is a wasteful number, since it uses less digits than its factorization.

40010621311253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215322934.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 40010621311253 its reverse (35211312601004), we get a palindrome (75221933912257).

The spelling of 40010621311253 in words is "forty trillion, ten billion, six hundred twenty-one million, three hundred eleven thousand, two hundred fifty-three".