1355485842491 has 8 divisors (see below), whose sum is σ = 1565694877104. Its totient is φ = 1159773982720.

The previous prime is 1355485842461. The next prime is 1355485842497. The reversal of 1355485842491 is 1942485845531.

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 1355485842491 - 2⁶ = 1355485842427 is a prime.

It is a super-2 number, since 2×1355485842491² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1355485842491.

It is not an unprimeable number, because it can be changed into a prime (1355485842497) 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, 3624293510 + ... + 3624293883.

It is an arithmetic number, because the mean of its divisors is an integer number (195711859638).

Almost surely, 2^{1355485842491} is an apocalyptic number.

1355485842491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1355485842491 is a deficient number, since it is larger than the sum of its proper divisors (210209034613).

1355485842491 is a wasteful number, since it uses less digits than its factorization.

1355485842491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7248587421.

The product of its digits is 27648000, while the sum is 59.

The spelling of 1355485842491 in words is "one trillion, three hundred fifty-five billion, four hundred eighty-five million, eight hundred forty-two thousand, four hundred ninety-one".