1261376375368 has 16 divisors (see below), whose sum is σ = 2422765599660. Its totient is φ = 615305548800.

The previous prime is 1261376375297. The next prime is 1261376375381. The reversal of 1261376375368 is 8635736731621.

It can be written as a sum of positive squares in 2 ways, for example, as 1235436696004 + 25939679364 = 1111502^2 + 161058^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1922829513 + ... + 1922830168.

Almost surely, 2^{1261376375368} is an apocalyptic number.

It is an amenable number.

1261376375368 is a deficient number, since it is larger than the sum of its proper divisors (1161389224292).

1261376375368 is a wasteful number, since it uses less digits than its factorization.

1261376375368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845659728 (or 3845659724 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 58.

The spelling of 1261376375368 in words is "one trillion, two hundred sixty-one billion, three hundred seventy-six million, three hundred seventy-five thousand, three hundred sixty-eight".