41256651609 has 24 divisors (see below), whose sum is σ = 59776254720. Its totient is φ = 27419940288.

The previous prime is 41256651607. The next prime is 41256651613. The reversal of 41256651609 is 90615665214.

41256651609 is a `hidden beast` number, since 4 + 125 + 6 + 6 + 516 + 0 + 9 = 666.

41256651609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 41256651609 - 2¹ = 41256651607 is a prime.

It is a super-2 number, since 2×41256651609² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (41256651607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5454172 + ... + 5461730.

It is an arithmetic number, because the mean of its divisors is an integer number (2490677280).

Almost surely, 2^41256651609 is an apocalyptic number.

It is an amenable number.

41256651609 is a deficient number, since it is larger than the sum of its proper divisors (18519603111).

41256651609 is a wasteful number, since it uses less digits than its factorization.

41256651609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9349 (or 9346 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 41256651609 in words is "forty-one billion, two hundred fifty-six million, six hundred fifty-one thousand, six hundred nine".