2163725398 has 4 divisors (see below), whose sum is σ = 3245588100. Its totient is φ = 1081862698.

The previous prime is 2163725393. The next prime is 2163725401. The reversal of 2163725398 is 8935273612.

2163725398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163725393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540931348 + ... + 540931351.

It is an arithmetic number, because the mean of its divisors is an integer number (811397025).

Almost surely, 2^2163725398 is an apocalyptic number.

2163725398 is a deficient number, since it is larger than the sum of its proper divisors (1081862702).

2163725398 is a wasteful number, since it uses less digits than its factorization.

2163725398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081862701.

The product of its digits is 544320, while the sum is 46.

The square root of 2163725398 is about 46515.8617892865. The cubic root of 2163725398 is about 1293.4035470584.

The spelling of 2163725398 in words is "two billion, one hundred sixty-three million, seven hundred twenty-five thousand, three hundred ninety-eight".