205243096948 has 12 divisors (see below), whose sum is σ = 359210319300. Its totient is φ = 102611577152.

The previous prime is 205243096937. The next prime is 205243096979. The reversal of 205243096948 is 849690342502.

It can be written as a sum of positive squares in 2 ways, for example, as 33671516004 + 171571580944 = 183498^2 + 414212^2 .

It is a super-2 number, since 2×205243096948² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205243096895 and 205243096904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2446423 + ... + 2528926.

It is an arithmetic number, because the mean of its divisors is an integer number (29934193275).

Almost surely, 2^205243096948 is an apocalyptic number.

It is an amenable number.

205243096948 is a deficient number, since it is larger than the sum of its proper divisors (153967222352).

205243096948 is a wasteful number, since it uses less digits than its factorization.

205243096948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985666 (or 4985664 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 205243096948 in words is "two hundred five billion, two hundred forty-three million, ninety-six thousand, nine hundred forty-eight".