1351117646647 has 4 divisors (see below), whose sum is σ = 1351127790000. Its totient is φ = 1351107503296.

The previous prime is 1351117646623. The next prime is 1351117646701. The reversal of 1351117646647 is 7466467111531.

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

It is a cyclic number.

It is not a de Polignac number, because 1351117646647 - 2³⁹ = 801361832759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1351117646594 and 1351117646603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351117644647) 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, 4869178 + ... + 5139175.

It is an arithmetic number, because the mean of its divisors is an integer number (337781947500).

Almost surely, 2^{1351117646647} is an apocalyptic number.

1351117646647 is a deficient number, since it is larger than the sum of its proper divisors (10143353).

1351117646647 is a wasteful number, since it uses less digits than its factorization.

1351117646647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10143352.

The product of its digits is 2540160, while the sum is 52.

The spelling of 1351117646647 in words is "one trillion, three hundred fifty-one billion, one hundred seventeen million, six hundred forty-six thousand, six hundred forty-seven".