205326790972 has 6 divisors (see below), whose sum is σ = 359321884208. Its totient is φ = 102663395484.

The previous prime is 205326790961. The next prime is 205326790979. The reversal of 205326790972 is 279097623502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205326790979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25665848868 + ... + 25665848875.

Almost surely, 2^205326790972 is an apocalyptic number.

It is an amenable number.

205326790972 is a deficient number, since it is larger than the sum of its proper divisors (153995093236).

205326790972 is a wasteful number, since it uses less digits than its factorization.

205326790972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51331697747 (or 51331697745 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 205326790972 in words is "two hundred five billion, three hundred twenty-six million, seven hundred ninety thousand, nine hundred seventy-two".