40443251653 has 16 divisors (see below), whose sum is σ = 46578804480. Its totient is φ = 34397790336.

The previous prime is 40443251621. The next prime is 40443251657. The reversal of 40443251653 is 35615234404.

40443251653 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 40443251653 - 2⁵ = 40443251621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40443251657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 791793 + ... + 841321.

It is an arithmetic number, because the mean of its divisors is an integer number (2911175280).

Almost surely, 2^40443251653 is an apocalyptic number.

It is an amenable number.

40443251653 is a deficient number, since it is larger than the sum of its proper divisors (6135552827).

40443251653 is a wasteful number, since it uses less digits than its factorization.

40443251653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50436.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 40443251653 in words is "forty billion, four hundred forty-three million, two hundred fifty-one thousand, six hundred fifty-three".