40134563125549 has 2 divisors, whose sum is σ = 40134563125550. Its totient is φ = 40134563125548.

The previous prime is 40134563125529. The next prime is 40134563125571. The reversal of 40134563125549 is 94552136543104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40044761016649 + 89802108900 = 6328093^2 + 299670^2 .

It is a cyclic number.

It is not a de Polignac number, because 40134563125549 - 2¹³ = 40134563117357 is a prime.

It is a super-2 number, since 2×40134563125549² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40134563125496 and 40134563125505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40134563125529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20067281562774 + 20067281562775.

It is an arithmetic number, because the mean of its divisors is an integer number (20067281562775).

Almost surely, 2^{40134563125549} is an apocalyptic number.

It is an amenable number.

40134563125549 is a deficient number, since it is larger than the sum of its proper divisors (1).

40134563125549 is an equidigital number, since it uses as much as digits as its factorization.

40134563125549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776000, while the sum is 52.

The spelling of 40134563125549 in words is "forty trillion, one hundred thirty-four billion, five hundred sixty-three million, one hundred twenty-five thousand, five hundred forty-nine".