1351705477418 has 24 divisors (see below), whose sum is σ = 2121486749508. Its totient is φ = 645875822592.

The previous prime is 1351705477417. The next prime is 1351705477457. The reversal of 1351705477418 is 8147745071531.

It can be written as a sum of positive squares in 2 ways, for example, as 1083208437529 + 268497039889 = 1040773^2 + 518167^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1351705477418.

It is not an unprimeable number, because it can be changed into a prime (1351705477417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 571946 + ... + 1740842.

Almost surely, 2^{1351705477418} is an apocalyptic number.

1351705477418 is a deficient number, since it is larger than the sum of its proper divisors (769781272090).

1351705477418 is a wasteful number, since it uses less digits than its factorization.

1351705477418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170038 (or 1170015 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 53.

The spelling of 1351705477418 in words is "one trillion, three hundred fifty-one billion, seven hundred five million, four hundred seventy-seven thousand, four hundred eighteen".