1897230953894 has 4 divisors (see below), whose sum is σ = 2845846430844. Its totient is φ = 948615476946.

The previous prime is 1897230953887. The next prime is 1897230953909. The reversal of 1897230953894 is 4983590327981.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474307738472 + ... + 474307738475.

It is an arithmetic number, because the mean of its divisors is an integer number (711461607711).

Almost surely, 2^{1897230953894} is an apocalyptic number.

1897230953894 is a deficient number, since it is larger than the sum of its proper divisors (948615476950).

1897230953894 is an equidigital number, since it uses as much as digits as its factorization.

1897230953894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948615476949.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 1897230953894 in words is "one trillion, eight hundred ninety-seven billion, two hundred thirty million, nine hundred fifty-three thousand, eight hundred ninety-four".