40651636244 has 12 divisors (see below), whose sum is σ = 71141782068. Its totient is φ = 20325412800.

The previous prime is 40651636237. The next prime is 40651636253. The reversal of 40651636244 is 44263615604.

40651636244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37476313744 + 3175322500 = 193588^2 + 56350^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308534 + ... + 420114.

It is an arithmetic number, because the mean of its divisors is an integer number (5928481839).

Almost surely, 2^40651636244 is an apocalyptic number.

It is an amenable number.

40651636244 is a deficient number, since it is larger than the sum of its proper divisors (30490145824).

40651636244 is a wasteful number, since it uses less digits than its factorization.

40651636244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202666 (or 202664 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 40651636244 in words is "forty billion, six hundred fifty-one million, six hundred thirty-six thousand, two hundred forty-four".