40521162450541 has 4 divisors (see below), whose sum is σ = 40524070751452. Its totient is φ = 40518254149632.

The previous prime is 40521162450473. The next prime is 40521162450557. The reversal of 40521162450541 is 14505426112504.

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 19482107133316 + 21039055317225 = 4413854^2 + 4586835^2 .

It is a cyclic number.

It is not a de Polignac number, because 40521162450541 - 2¹⁹ = 40521161926253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40521162450494 and 40521162450503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40521162454541) 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, 1454129556 + ... + 1454157421.

It is an arithmetic number, because the mean of its divisors is an integer number (10131017687863).

Almost surely, 2^{40521162450541} is an apocalyptic number.

It is an amenable number.

40521162450541 is a deficient number, since it is larger than the sum of its proper divisors (2908300911).

40521162450541 is a wasteful number, since it uses less digits than its factorization.

40521162450541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908300910.

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 40521162450541 in words is "forty trillion, five hundred twenty-one billion, one hundred sixty-two million, four hundred fifty thousand, five hundred forty-one".