1897563345195 has 48 divisors (see below), whose sum is σ = 3532010220288. Its totient is φ = 867403776960.

The previous prime is 1897563345179. The next prime is 1897563345217. The reversal of 1897563345195 is 5915433657981.

It is not a de Polignac number, because 1897563345195 - 2⁴ = 1897563345179 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13314202 + ... + 13455968.

It is an arithmetic number, because the mean of its divisors is an integer number (73583546256).

Almost surely, 2^{1897563345195} is an apocalyptic number.

1897563345195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1897563345195 is a deficient number, since it is larger than the sum of its proper divisors (1634446875093).

1897563345195 is a wasteful number, since it uses less digits than its factorization.

1897563345195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160000 (or 159993 counting only the distinct ones).

The product of its digits is 122472000, while the sum is 66.

The spelling of 1897563345195 in words is "one trillion, eight hundred ninety-seven billion, five hundred sixty-three million, three hundred forty-five thousand, one hundred ninety-five".