40632641653 has 8 divisors (see below), whose sum is σ = 43018437600. Its totient is φ = 38271569328.

The previous prime is 40632641603. The next prime is 40632641659. The reversal of 40632641653 is 35614623604.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40632641653 is a prime.

It is a super-2 number, since 2×40632641653² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40632641659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6177523 + ... + 6184096.

It is an arithmetic number, because the mean of its divisors is an integer number (5377304700).

Almost surely, 2^40632641653 is an apocalyptic number.

It is an amenable number.

40632641653 is a deficient number, since it is larger than the sum of its proper divisors (2385795947).

40632641653 is a wasteful number, since it uses less digits than its factorization.

40632641653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12361811.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 40632641653 in words is "forty billion, six hundred thirty-two million, six hundred forty-one thousand, six hundred fifty-three".