1934872647811 has 4 divisors (see below), whose sum is σ = 1935569399832. Its totient is φ = 1934175895792.

The previous prime is 1934872647809. The next prime is 1934872647941. The reversal of 1934872647811 is 1187462784391.

It is a happy number.

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 1934872647811 - 2¹ = 1934872647809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1934872647811.

It is not an unprimeable number, because it can be changed into a prime (1934872657811) 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, 348371845 + ... + 348377398.

It is an arithmetic number, because the mean of its divisors is an integer number (483892349958).

Almost surely, 2^{1934872647811} is an apocalyptic number.

1934872647811 is a deficient number, since it is larger than the sum of its proper divisors (696752021).

1934872647811 is an equidigital number, since it uses as much as digits as its factorization.

1934872647811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696752020.

The product of its digits is 16257024, while the sum is 61.

The spelling of 1934872647811 in words is "one trillion, nine hundred thirty-four billion, eight hundred seventy-two million, six hundred forty-seven thousand, eight hundred eleven".