838897195505 has 16 divisors (see below), whose sum is σ = 1039187778048. Its totient is φ = 649445232000.

The previous prime is 838897195483. The next prime is 838897195517. The reversal of 838897195505 is 505591798838.

838897195505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 838897195505 - 2²⁸ = 838628760049 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, 5058350 + ... + 5221560.

It is an arithmetic number, because the mean of its divisors is an integer number (64949236128).

Almost surely, 2^838897195505 is an apocalyptic number.

It is an amenable number.

838897195505 is a deficient number, since it is larger than the sum of its proper divisors (200290582543).

838897195505 is a wasteful number, since it uses less digits than its factorization.

838897195505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196408.

The product of its (nonzero) digits is 108864000, while the sum is 68.

The spelling of 838897195505 in words is "eight hundred thirty-eight billion, eight hundred ninety-seven million, one hundred ninety-five thousand, five hundred five".