1351547488168 has 8 divisors (see below), whose sum is σ = 2534151540330. Its totient is φ = 675773744080.

The previous prime is 1351547488153. The next prime is 1351547488177. The reversal of 1351547488168 is 8618847451531.

It can be written as a sum of positive squares in only one way, i.e., 1351503901764 + 43586404 = 1162542^2 + 6602^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1351547488168² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84471718003 + ... + 84471718018.

Almost surely, 2^{1351547488168} is an apocalyptic number.

It is an amenable number.

1351547488168 is a deficient number, since it is larger than the sum of its proper divisors (1182604052162).

1351547488168 is a wasteful number, since it uses less digits than its factorization.

1351547488168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168943436027 (or 168943436023 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 61.

The spelling of 1351547488168 in words is "one trillion, three hundred fifty-one billion, five hundred forty-seven million, four hundred eighty-eight thousand, one hundred sixty-eight".