245620404269 has 4 divisors (see below), whose sum is σ = 246251819580. Its totient is φ = 244988988960.

The previous prime is 245620404203. The next prime is 245620404287. The reversal of 245620404269 is 962404026542.

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 27565960900 + 218054443369 = 166030^2 + 466963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245620404269 is a prime.

It is a super-2 number, since 2×245620404269² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245620454269) 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, 315707072 + ... + 315707849.

It is an arithmetic number, because the mean of its divisors is an integer number (61562954895).

Almost surely, 2^245620404269 is an apocalyptic number.

It is an amenable number.

245620404269 is a deficient number, since it is larger than the sum of its proper divisors (631415311).

245620404269 is an equidigital number, since it uses as much as digits as its factorization.

245620404269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631415310.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 245620404269 in words is "two hundred forty-five billion, six hundred twenty million, four hundred four thousand, two hundred sixty-nine".