1946964357859 has 4 divisors (see below), whose sum is σ = 1946977917480. Its totient is φ = 1946950798240.

The previous prime is 1946964357853. The next prime is 1946964357887. The reversal of 1946964357859 is 9587534696491.

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

It is a cyclic number.

It is not a de Polignac number, because 1946964357859 - 2³⁹ = 1397208543971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1946964357853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6562102 + ... + 6852379.

It is an arithmetic number, because the mean of its divisors is an integer number (486744479370).

Almost surely, 2^{1946964357859} is an apocalyptic number.

1946964357859 is a deficient number, since it is larger than the sum of its proper divisors (13559621).

1946964357859 is a wasteful number, since it uses less digits than its factorization.

1946964357859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13559620.

The product of its digits is 1763596800, while the sum is 76.

The spelling of 1946964357859 in words is "one trillion, nine hundred forty-six billion, nine hundred sixty-four million, three hundred fifty-seven thousand, eight hundred fifty-nine".