205372245747 has 32 divisors (see below), whose sum is σ = 281927580480. Its totient is φ = 132929280000.

The previous prime is 205372245737. The next prime is 205372245787. The reversal of 205372245747 is 747542273502.

It is not a de Polignac number, because 205372245747 - 2⁴ = 205372245731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205372245696 and 205372245705.

It is not an unprimeable number, because it can be changed into a prime (205372245707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9777997 + ... + 9798977.

It is an arithmetic number, because the mean of its divisors is an integer number (8810236890).

Almost surely, 2^205372245747 is an apocalyptic number.

205372245747 is a deficient number, since it is larger than the sum of its proper divisors (76555334733).

205372245747 is a wasteful number, since it uses less digits than its factorization.

205372245747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21735.

The product of its (nonzero) digits is 3292800, while the sum is 48.

The spelling of 205372245747 in words is "two hundred five billion, three hundred seventy-two million, two hundred forty-five thousand, seven hundred forty-seven".