1349661749755 has 16 divisors (see below), whose sum is σ = 1795794356448. Its totient is φ = 965480832000.

The previous prime is 1349661749753. The next prime is 1349661749797. The reversal of 1349661749755 is 5579471669431.

It is not a de Polignac number, because 1349661749755 - 2¹ = 1349661749753 is a prime.

It is a super-4 number, since 4×1349661749755⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1349661749753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201138486 + ... + 201145195.

It is an arithmetic number, because the mean of its divisors is an integer number (112237147278).

Almost surely, 2^{1349661749755} is an apocalyptic number.

1349661749755 is a deficient number, since it is larger than the sum of its proper divisors (446132606693).

1349661749755 is a wasteful number, since it uses less digits than its factorization.

1349661749755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402283758.

The product of its digits is 171460800, while the sum is 67.

The spelling of 1349661749755 in words is "one trillion, three hundred forty-nine billion, six hundred sixty-one million, seven hundred forty-nine thousand, seven hundred fifty-five".