245663499859 has 8 divisors (see below), whose sum is σ = 256361912352. Its totient is φ = 234966536640.

The previous prime is 245663499857. The next prime is 245663499923. The reversal of 245663499859 is 958994366542.

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

It is a cyclic number.

It is not a de Polignac number, because 245663499859 - 2¹ = 245663499857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245663499857) 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, 8562 + ... + 700999.

It is an arithmetic number, because the mean of its divisors is an integer number (32045239044).

Almost surely, 2^245663499859 is an apocalyptic number.

245663499859 is a deficient number, since it is larger than the sum of its proper divisors (10698412493).

245663499859 is a wasteful number, since it uses less digits than its factorization.

245663499859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724637.

The product of its digits is 503884800, while the sum is 70.

The spelling of 245663499859 in words is "two hundred forty-five billion, six hundred sixty-three million, four hundred ninety-nine thousand, eight hundred fifty-nine".