21411041995 has 16 divisors (see below), whose sum is σ = 29988476928. Its totient is φ = 14369476320.

The previous prime is 21411041989. The next prime is 21411042013. The reversal of 21411041995 is 59914011412.

It is a de Polignac number, because none of the positive numbers 2^k-21411041995 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6506271 + ... + 6509560.

It is an arithmetic number, because the mean of its divisors is an integer number (1874279808).

Almost surely, 2^21411041995 is an apocalyptic number.

21411041995 is a deficient number, since it is larger than the sum of its proper divisors (8577434933).

21411041995 is a wasteful number, since it uses less digits than its factorization.

21411041995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13015890.

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 21411041995 in words is "twenty-one billion, four hundred eleven million, forty-one thousand, nine hundred ninety-five".