1864370247839 has 12 divisors (see below), whose sum is σ = 2126131810152. Its totient is φ = 1621191514800.

The previous prime is 1864370247833. The next prime is 1864370247841. The reversal of 1864370247839 is 9387420734681.

It is a de Polignac number, because none of the positive numbers 2^k-1864370247839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1864370247833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160190972 + ... + 160202609.

It is an arithmetic number, because the mean of its divisors is an integer number (177177650846).

Almost surely, 2^{1864370247839} is an apocalyptic number.

1864370247839 is a deficient number, since it is larger than the sum of its proper divisors (261761562313).

1864370247839 is a wasteful number, since it uses less digits than its factorization.

1864370247839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320393638 (or 320393615 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 62.

The spelling of 1864370247839 in words is "one trillion, eight hundred sixty-four billion, three hundred seventy million, two hundred forty-seven thousand, eight hundred thirty-nine".