1491901443116 has 48 divisors (see below), whose sum is σ = 3064907983872. Its totient is φ = 622091664000.

The previous prime is 1491901443113. The next prime is 1491901443139. The reversal of 1491901443116 is 6113441091941.

It is not an unprimeable number, because it can be changed into a prime (1491901443113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1349210 + ... + 2191841.

It is an arithmetic number, because the mean of its divisors is an integer number (63852249664).

Almost surely, 2^{1491901443116} is an apocalyptic number.

It is an amenable number.

1491901443116 is an abundant number, since it is smaller than the sum of its proper divisors (1573006540756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1491901443116 is a wasteful number, since it uses less digits than its factorization.

1491901443116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541470 (or 3541468 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 1491901443116 in words is "one trillion, four hundred ninety-one billion, nine hundred one million, four hundred forty-three thousand, one hundred sixteen".