40495726253 has 2 divisors, whose sum is σ = 40495726254. Its totient is φ = 40495726252.

The previous prime is 40495726241. The next prime is 40495726289. The reversal of 40495726253 is 35262759404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37604190724 + 2891535529 = 193918^2 + 53773^2 .

It is a cyclic number.

It is not a de Polignac number, because 40495726253 - 2¹⁸ = 40495464109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40495726198 and 40495726207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40495725253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20247863126 + 20247863127.

It is an arithmetic number, because the mean of its divisors is an integer number (20247863127).

Almost surely, 2^40495726253 is an apocalyptic number.

It is an amenable number.

40495726253 is a deficient number, since it is larger than the sum of its proper divisors (1).

40495726253 is an equidigital number, since it uses as much as digits as its factorization.

40495726253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 40495726253 in words is "forty billion, four hundred ninety-five million, seven hundred twenty-six thousand, two hundred fifty-three".