21361462995 has 16 divisors (see below), whose sum is σ = 34180312320. Its totient is φ = 11392123104.

The previous prime is 21361462979. The next prime is 21361463009. The reversal of 21361462995 is 59926416312.

It is not a de Polignac number, because 21361462995 - 2⁴ = 21361462979 is a prime.

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, 344242 + ... + 401528.

It is an arithmetic number, because the mean of its divisors is an integer number (2136269520).

Almost surely, 2^21361462995 is an apocalyptic number.

21361462995 is a deficient number, since it is larger than the sum of its proper divisors (12818849325).

21361462995 is a wasteful number, since it uses less digits than its factorization.

21361462995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82154.

The product of its digits is 699840, while the sum is 48.

The spelling of 21361462995 in words is "twenty-one billion, three hundred sixty-one million, four hundred sixty-two thousand, nine hundred ninety-five".