40649233642 has 8 divisors (see below), whose sum is σ = 61004760516. Its totient is φ = 20314313472.

The previous prime is 40649233637. The next prime is 40649233687. The reversal of 40649233642 is 24633294604.

40649233642 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 40585728681 + 63504961 = 201459^2 + 7969^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 5146743 + ... + 5154634.

Almost surely, 2^40649233642 is an apocalyptic number.

40649233642 is a deficient number, since it is larger than the sum of its proper divisors (20355526874).

40649233642 is a wasteful number, since it uses less digits than its factorization.

40649233642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10303352.

The product of its (nonzero) digits is 746496, while the sum is 43.

The spelling of 40649233642 in words is "forty billion, six hundred forty-nine million, two hundred thirty-three thousand, six hundred forty-two".