245431827687 has 8 divisors (see below), whose sum is σ = 327508276480. Its totient is φ = 163488298680.

The previous prime is 245431827637. The next prime is 245431827743. The reversal of 245431827687 is 786728134542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245431827687 - 2²⁷ = 245297609959 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 (245431827637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33225637 + ... + 33233022.

It is an arithmetic number, because the mean of its divisors is an integer number (40938534560).

Almost surely, 2^245431827687 is an apocalyptic number.

245431827687 is a deficient number, since it is larger than the sum of its proper divisors (82076448793).

245431827687 is a wasteful number, since it uses less digits than its factorization.

245431827687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66459893.

The product of its digits is 18063360, while the sum is 57.

The spelling of 245431827687 in words is "two hundred forty-five billion, four hundred thirty-one million, eight hundred twenty-seven thousand, six hundred eighty-seven".