1351757451613 has 4 divisors (see below), whose sum is σ = 1354351996188. Its totient is φ = 1349162907040.

The previous prime is 1351757451563. The next prime is 1351757451647. The reversal of 1351757451613 is 3161547571531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 720371470009 + 631385981604 = 848747^2 + 794598^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351757451613 - 2¹⁷ = 1351757320541 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351757451683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1297271506 + ... + 1297272547.

It is an arithmetic number, because the mean of its divisors is an integer number (338587999047).

Almost surely, 2^{1351757451613} is an apocalyptic number.

It is an amenable number.

1351757451613 is a deficient number, since it is larger than the sum of its proper divisors (2594544575).

1351757451613 is an equidigital number, since it uses as much as digits as its factorization.

1351757451613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594544574.

The product of its digits is 1323000, while the sum is 49.

The spelling of 1351757451613 in words is "one trillion, three hundred fifty-one billion, seven hundred fifty-seven million, four hundred fifty-one thousand, six hundred thirteen".