40639717253 has 16 divisors (see below), whose sum is σ = 44216961600. Its totient is φ = 37227703680.

The previous prime is 40639717249. The next prime is 40639717273. The reversal of 40639717253 is 35271793604.

It is a cyclic number.

It is not a de Polignac number, because 40639717253 - 2² = 40639717249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40639717198 and 40639717207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40639717213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228776 + ... + 365537.

It is an arithmetic number, because the mean of its divisors is an integer number (2763560100).

Almost surely, 2^40639717253 is an apocalyptic number.

It is an amenable number.

40639717253 is a deficient number, since it is larger than the sum of its proper divisors (3577244347).

40639717253 is a wasteful number, since it uses less digits than its factorization.

40639717253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594452.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 40639717253 in words is "forty billion, six hundred thirty-nine million, seven hundred seventeen thousand, two hundred fifty-three".