245872163394 has 384 divisors, whose sum is σ = 671379528960. Its totient is φ = 65714457600.

The previous prime is 245872163393. The next prime is 245872163417. The reversal of 245872163394 is 493361278542.

245872163394 is a `hidden beast` number, since 2 + 4 + 587 + 21 + 6 + 3 + 39 + 4 = 666.

245872163394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 245872163394.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245872163393) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1421226292 + ... + 1421226464.

It is an arithmetic number, because the mean of its divisors is an integer number (1748384190).

Almost surely, 2^245872163394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245872163394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335689764480).

245872163394 is an abundant number, since it is smaller than the sum of its proper divisors (425507365566).

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

245872163394 is a wasteful number, since it uses less digits than its factorization.

245872163394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 310 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 245872163394 in words is "two hundred forty-five billion, eight hundred seventy-two million, one hundred sixty-three thousand, three hundred ninety-four".