40521571327 has 16 divisors (see below), whose sum is σ = 44031214080. Its totient is φ = 37175292000.

The previous prime is 40521571319. The next prime is 40521571351. The reversal of 40521571327 is 72317512504.

It is a cyclic number.

It is not a de Polignac number, because 40521571327 - 2³ = 40521571319 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 (40521575327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100449 + ... + 301882.

It is an arithmetic number, because the mean of its divisors is an integer number (2751950880).

Almost surely, 2^40521571327 is an apocalyptic number.

40521571327 is a deficient number, since it is larger than the sum of its proper divisors (3509642753).

40521571327 is a wasteful number, since it uses less digits than its factorization.

40521571327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402534.

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 40521571327 in words is "forty billion, five hundred twenty-one million, five hundred seventy-one thousand, three hundred twenty-seven".