245711532713730 has 128 divisors (see below), whose sum is σ = 606580771668480. Its totient is φ = 63661653411840.

The previous prime is 245711532713641. The next prime is 245711532713767. The reversal of 245711532713730 is 37317235117542.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 828019264 + ... + 828315956.

It is an arithmetic number, because the mean of its divisors is an integer number (4738912278660).

Almost surely, 2^{245711532713730} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245711532713730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303290385834240).

245711532713730 is an abundant number, since it is smaller than the sum of its proper divisors (360869238954750).

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

245711532713730 is a wasteful number, since it uses less digits than its factorization.

245711532713730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299516.

The product of its (nonzero) digits is 3704400, while the sum is 51.

The spelling of 245711532713730 in words is "two hundred forty-five trillion, seven hundred eleven billion, five hundred thirty-two million, seven hundred thirteen thousand, seven hundred thirty".