1375358247647 has 8 divisors (see below), whose sum is σ = 1412546558832. Its totient is φ = 1338170803200.

The previous prime is 1375358247643. The next prime is 1375358247649. The reversal of 1375358247647 is 7467428535731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1375358247647 - 2² = 1375358247643 is a prime.

It is a super-2 number, since 2×1375358247647² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1375358247647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375358247643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4201247 + ... + 4516767.

It is an arithmetic number, because the mean of its divisors is an integer number (176568319854).

Almost surely, 2^{1375358247647} is an apocalyptic number.

1375358247647 is a deficient number, since it is larger than the sum of its proper divisors (37188311185).

1375358247647 is a wasteful number, since it uses less digits than its factorization.

1375358247647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433369.

The product of its digits is 118540800, while the sum is 62.

The spelling of 1375358247647 in words is "one trillion, three hundred seventy-five billion, three hundred fifty-eight million, two hundred forty-seven thousand, six hundred forty-seven".