1349645549760 has 168 divisors, whose sum is σ = 4654342817280. Its totient is φ = 358965485568.

The previous prime is 1349645549737. The next prime is 1349645549807. The reversal of 1349645549760 is 679455469431.

It is a happy number.

1349645549760 is a `hidden beast` number, since 1 + 3 + 4 + 9 + 6 + 4 + 554 + 9 + 76 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 491256 + ... + 1714824.

Almost surely, 2^{1349645549760} is an apocalyptic number.

1349645549760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1349645549760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2327171408640).

1349645549760 is an abundant number, since it is smaller than the sum of its proper divisors (3304697267520).

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

1349645549760 is a wasteful number, since it uses less digits than its factorization.

1349645549760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223975 (or 1223962 counting only the distinct ones).

The product of its (nonzero) digits is 97977600, while the sum is 63.

The spelling of 1349645549760 in words is "one trillion, three hundred forty-nine billion, six hundred forty-five million, five hundred forty-nine thousand, seven hundred sixty".