1377862643345 has 16 divisors (see below), whose sum is σ = 1689631079760. Its totient is φ = 1078282942464.

The previous prime is 1377862643279. The next prime is 1377862643429. The reversal of 1377862643345 is 5433462687731.

It can be written as a sum of positive squares in 8 ways, for example, as 103591928449 + 1274270714896 = 321857^2 + 1128836^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377862643345 - 2¹⁴ = 1377862626961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7625060 + ... + 7803669.

It is an arithmetic number, because the mean of its divisors is an integer number (105601942485).

Almost surely, 2^{1377862643345} is an apocalyptic number.

It is an amenable number.

1377862643345 is a deficient number, since it is larger than the sum of its proper divisors (311768436415).

1377862643345 is a wasteful number, since it uses less digits than its factorization.

1377862643345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15429124.

The product of its digits is 60963840, while the sum is 59.

The spelling of 1377862643345 in words is "one trillion, three hundred seventy-seven billion, eight hundred sixty-two million, six hundred forty-three thousand, three hundred forty-five".