245651236013 has 4 divisors (see below), whose sum is σ = 245719799808. Its totient is φ = 245582672220.

The previous prime is 245651236007. The next prime is 245651236031. The reversal of 245651236013 is 310632156542.

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 not a de Polignac number, because 245651236013 - 2⁴ = 245651235997 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 (245651236003) 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, 34276523 + ... + 34283688.

It is an arithmetic number, because the mean of its divisors is an integer number (61429949952).

Almost surely, 2^245651236013 is an apocalyptic number.

It is an amenable number.

245651236013 is a deficient number, since it is larger than the sum of its proper divisors (68563795).

245651236013 is an equidigital number, since it uses as much as digits as its factorization.

245651236013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68563794.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 245651236013 in words is "two hundred forty-five billion, six hundred fifty-one million, two hundred thirty-six thousand, thirteen".