40611027521 has 4 divisors (see below), whose sum is σ = 40623014100. Its totient is φ = 40599040944.

The previous prime is 40611027517. The next prime is 40611027529. The reversal of 40611027521 is 12572011604.

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 32674177600 + 7936849921 = 180760^2 + 89089^2 .

It is a cyclic number.

It is not a de Polignac number, because 40611027521 - 2² = 40611027517 is a prime.

It is a super-2 number, since 2×40611027521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40611027529) 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, 5988206 + ... + 5994983.

It is an arithmetic number, because the mean of its divisors is an integer number (10155753525).

Almost surely, 2^40611027521 is an apocalyptic number.

It is an amenable number.

40611027521 is a deficient number, since it is larger than the sum of its proper divisors (11986579).

40611027521 is a wasteful number, since it uses less digits than its factorization.

40611027521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11986578.

The product of its (nonzero) digits is 3360, while the sum is 29.

The spelling of 40611027521 in words is "forty billion, six hundred eleven million, twenty-seven thousand, five hundred twenty-one".