1994915886063 has 8 divisors (see below), whose sum is σ = 2673389817648. Its totient is φ = 1323192939264.

The previous prime is 1994915886001. The next prime is 1994915886077. The reversal of 1994915886063 is 3606885194991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1994915886063 - 2²⁶ = 1994848777199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994915886263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1687745506 + ... + 1687746687.

It is an arithmetic number, because the mean of its divisors is an integer number (334173727206).

Almost surely, 2^{1994915886063} is an apocalyptic number.

1994915886063 is a deficient number, since it is larger than the sum of its proper divisors (678473931585).

1994915886063 is a wasteful number, since it uses less digits than its factorization.

1994915886063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375492393.

The product of its (nonzero) digits is 100776960, while the sum is 69.

The spelling of 1994915886063 in words is "one trillion, nine hundred ninety-four billion, nine hundred fifteen million, eight hundred eighty-six thousand, sixty-three".