40501260021 has 8 divisors (see below), whose sum is σ = 54227629440. Its totient is φ = 26887865312.

The previous prime is 40501259971. The next prime is 40501260031. The reversal of 40501260021 is 12006210504.

40501260021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40501260021 - 2⁷ = 40501259893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40501260021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40501260031) 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, 28242840 + ... + 28244273.

It is an arithmetic number, because the mean of its divisors is an integer number (6778453680).

Almost surely, 2^40501260021 is an apocalyptic number.

It is an amenable number.

40501260021 is a deficient number, since it is larger than the sum of its proper divisors (13726369419).

40501260021 is a wasteful number, since it uses less digits than its factorization.

40501260021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56487355.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 40501260021 its reverse (12006210504), we get a palindrome (52507470525).

The spelling of 40501260021 in words is "forty billion, five hundred one million, two hundred sixty thousand, twenty-one".