21376144035 has 48 divisors (see below), whose sum is σ = 38353292640. Its totient is φ = 11000693760.

The previous prime is 21376143973. The next prime is 21376144057. The reversal of 21376144035 is 53044167312.

21376144035 is a `hidden beast` number, since 2 + 1 + 3 + 7 + 614 + 4 + 0 + 35 = 666.

It is not a de Polignac number, because 21376144035 - 2⁸ = 21376143779 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2641195 + ... + 2649275.

It is an arithmetic number, because the mean of its divisors is an integer number (799026930).

Almost surely, 2^21376144035 is an apocalyptic number.

21376144035 is a deficient number, since it is larger than the sum of its proper divisors (16977148605).

21376144035 is a wasteful number, since it uses less digits than its factorization.

21376144035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10148 (or 10145 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 21376144035 in words is "twenty-one billion, three hundred seventy-six million, one hundred forty-four thousand, thirty-five".