1493013920771 has 4 divisors (see below), whose sum is σ = 1493035878432. Its totient is φ = 1492991963112.

The previous prime is 1493013920729. The next prime is 1493013920773. The reversal of 1493013920771 is 1770293103941.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1493013920771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1493013920773) 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, 10876520 + ... + 11012933.

It is an arithmetic number, because the mean of its divisors is an integer number (373258969608).

Almost surely, 2^{1493013920771} is an apocalyptic number.

1493013920771 is a deficient number, since it is larger than the sum of its proper divisors (21957661).

1493013920771 is an equidigital number, since it uses as much as digits as its factorization.

1493013920771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21957660.

The product of its (nonzero) digits is 285768, while the sum is 47.

The spelling of 1493013920771 in words is "one trillion, four hundred ninety-three billion, thirteen million, nine hundred twenty thousand, seven hundred seventy-one".