262945320061 has 4 divisors (see below), whose sum is σ = 264191506624. Its totient is φ = 261699133500.

The previous prime is 262945320017. The next prime is 262945320091. The reversal of 262945320061 is 160023549262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-262945320061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 262945319996 and 262945320023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (262945320091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623092965 + ... + 623093386.

It is an arithmetic number, because the mean of its divisors is an integer number (66047876656).

Almost surely, 2^262945320061 is an apocalyptic number.

It is an amenable number.

262945320061 is a deficient number, since it is larger than the sum of its proper divisors (1246186563).

262945320061 is a wasteful number, since it uses less digits than its factorization.

262945320061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246186562.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 262945320061 in words is "two hundred sixty-two billion, nine hundred forty-five million, three hundred twenty thousand, sixty-one".