1339509135745 has 16 divisors (see below), whose sum is σ = 1758836957760. Its totient is φ = 971245281600.

The previous prime is 1339509135703. The next prime is 1339509135749. The reversal of 1339509135745 is 5475319059331.

It is a happy number.

It is not a de Polignac number, because 1339509135745 - 2⁹ = 1339509135233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (1339509135749) 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, 36771390 + ... + 36807799.

It is an arithmetic number, because the mean of its divisors is an integer number (109927309860).

Almost surely, 2^{1339509135745} is an apocalyptic number.

It is an amenable number.

1339509135745 is a deficient number, since it is larger than the sum of its proper divisors (419327822015).

1339509135745 is a wasteful number, since it uses less digits than its factorization.

1339509135745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73579536.

The product of its (nonzero) digits is 7654500, while the sum is 55.

The spelling of 1339509135745 in words is "one trillion, three hundred thirty-nine billion, five hundred nine million, one hundred thirty-five thousand, seven hundred forty-five".