205280620838 has 16 divisors (see below), whose sum is σ = 324982536000. Its totient is φ = 96981616872.

The previous prime is 205280620823. The next prime is 205280620849. The reversal of 205280620838 is 838026082502.

205280620838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7112408 + ... + 7141211.

It is an arithmetic number, because the mean of its divisors is an integer number (20311408500).

Almost surely, 2^205280620838 is an apocalyptic number.

205280620838 is a deficient number, since it is larger than the sum of its proper divisors (119701915162).

205280620838 is a wasteful number, since it uses less digits than its factorization.

205280620838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14254019.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 205280620838 in words is "two hundred five billion, two hundred eighty million, six hundred twenty thousand, eight hundred thirty-eight".