245208690834 has 16 divisors (see below), whose sum is σ = 490422528288. Its totient is φ = 81735372512.

The previous prime is 245208690827. The next prime is 245208690847. The reversal of 245208690834 is 438096802542.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714454 + ... + 1000430.

It is an arithmetic number, because the mean of its divisors is an integer number (30651408018).

Almost surely, 2^245208690834 is an apocalyptic number.

245208690834 is an abundant number, since it is smaller than the sum of its proper divisors (245213837454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245208690834 is a wasteful number, since it uses less digits than its factorization.

245208690834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428889.

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 245208690834 in words is "two hundred forty-five billion, two hundred eight million, six hundred ninety thousand, eight hundred thirty-four".