262428621671 has 4 divisors (see below), whose sum is σ = 262434480600. Its totient is φ = 262422762744.

The previous prime is 262428621667. The next prime is 262428621683. The reversal of 262428621671 is 176126824262.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 262428621671 - 2² = 262428621667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (262428624671) 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, 2861756 + ... + 2952033.

It is an arithmetic number, because the mean of its divisors is an integer number (65608620150).

Almost surely, 2^262428621671 is an apocalyptic number.

262428621671 is a deficient number, since it is larger than the sum of its proper divisors (5858929).

262428621671 is an equidigital number, since it uses as much as digits as its factorization.

262428621671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5858928.

The product of its digits is 774144, while the sum is 47.

The spelling of 262428621671 in words is "two hundred sixty-two billion, four hundred twenty-eight million, six hundred twenty-one thousand, six hundred seventy-one".