245705542890 has 16 divisors (see below), whose sum is σ = 589693303008. Its totient is φ = 65521478096.

The previous prime is 245705542889. The next prime is 245705542897. The reversal of 245705542890 is 98245507542.

It is not an unprimeable number, because it can be changed into a prime (245705542897) 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, 4095092352 + ... + 4095092411.

It is an arithmetic number, because the mean of its divisors is an integer number (36855831438).

Almost surely, 2^245705542890 is an apocalyptic number.

245705542890 is an abundant number, since it is smaller than the sum of its proper divisors (343987760118).

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

245705542890 is a wasteful number, since it uses less digits than its factorization.

245705542890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8190184773.

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 245705542890 in words is "two hundred forty-five billion, seven hundred five million, five hundred forty-two thousand, eight hundred ninety".