1491512691341 has 8 divisors (see below), whose sum is σ = 1504805282304. Its totient is φ = 1478221738560.

The previous prime is 1491512691311. The next prime is 1491512691367. The reversal of 1491512691341 is 1431962151941.

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

It is a cyclic number.

It is not a de Polignac number, because 1491512691341 - 2²⁶ = 1491445582477 is a prime.

It is a super-2 number, since 2×1491512691341² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491512691301) 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 7 ways as a sum of consecutive naturals, for example, 1457246 + ... + 2259776.

It is an arithmetic number, because the mean of its divisors is an integer number (188100660288).

Almost surely, 2^{1491512691341} is an apocalyptic number.

It is an amenable number.

1491512691341 is a deficient number, since it is larger than the sum of its proper divisors (13292590963).

1491512691341 is a wasteful number, since it uses less digits than its factorization.

1491512691341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819091.

The product of its digits is 233280, while the sum is 47.

The spelling of 1491512691341 in words is "one trillion, four hundred ninety-one billion, five hundred twelve million, six hundred ninety-one thousand, three hundred forty-one".