1863478106193 has 16 divisors (see below), whose sum is σ = 2754948261312. Its totient is φ = 1110866232000.

The previous prime is 1863478106173. The next prime is 1863478106227. The reversal of 1863478106193 is 3916018743681.

It is a happy number.

It is not a de Polignac number, because 1863478106193 - 2²⁴ = 1863461328977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1863478106123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462858918 + ... + 462862943.

It is an arithmetic number, because the mean of its divisors is an integer number (172184266332).

Almost surely, 2^{1863478106193} is an apocalyptic number.

It is an amenable number.

1863478106193 is a deficient number, since it is larger than the sum of its proper divisors (891470155119).

1863478106193 is a wasteful number, since it uses less digits than its factorization.

1863478106193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925721936.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 1863478106193 in words is "one trillion, eight hundred sixty-three billion, four hundred seventy-eight million, one hundred six thousand, one hundred ninety-three".