235420980805 has 4 divisors (see below), whose sum is σ = 282505176972. Its totient is φ = 188336784640.

The previous prime is 235420980787. The next prime is 235420980829. The reversal of 235420980805 is 508089024532.

It is a Cunningham number, because it is equal to 485202²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 84752018884 + 150668961921 = 291122^2 + 388161^2 .

It is a de Polignac number, because none of the positive numbers 2^k-235420980805 is a prime.

It is a Duffinian number.

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, 23542098076 + ... + 23542098085.

It is an arithmetic number, because the mean of its divisors is an integer number (70626294243).

Almost surely, 2^235420980805 is an apocalyptic number.

It is an amenable number.

235420980805 is a deficient number, since it is larger than the sum of its proper divisors (47084196167).

235420980805 is an equidigital number, since it uses as much as digits as its factorization.

235420980805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47084196166.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 235420980805 in words is "two hundred thirty-five billion, four hundred twenty million, nine hundred eighty thousand, eight hundred five".