40611264521 has 16 divisors (see below), whose sum is σ = 44493442560. Its totient is φ = 36900906240.

The previous prime is 40611264509. The next prime is 40611264539. The reversal of 40611264521 is 12546211604.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40611264521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40613264521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128855 + ... + 312771.

It is an arithmetic number, because the mean of its divisors is an integer number (2780840160).

Almost surely, 2^40611264521 is an apocalyptic number.

It is an amenable number.

40611264521 is a deficient number, since it is larger than the sum of its proper divisors (3882178039).

40611264521 is a wasteful number, since it uses less digits than its factorization.

40611264521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184384.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 40611264521 in words is "forty billion, six hundred eleven million, two hundred sixty-four thousand, five hundred twenty-one".