1377791672345 has 32 divisors (see below), whose sum is σ = 1815119953920. Its totient is φ = 995665051840.

The previous prime is 1377791672333. The next prime is 1377791672353. The reversal of 1377791672345 is 5432761977731.

It is a de Polignac number, because none of the positive numbers 2^k-1377791672345 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26417564 + ... + 26469666.

It is an arithmetic number, because the mean of its divisors is an integer number (56722498560).

Almost surely, 2^{1377791672345} is an apocalyptic number.

It is an amenable number.

1377791672345 is a deficient number, since it is larger than the sum of its proper divisors (437328281575).

1377791672345 is a wasteful number, since it uses less digits than its factorization.

1377791672345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55165.

The product of its digits is 46675440, while the sum is 62.

The spelling of 1377791672345 in words is "one trillion, three hundred seventy-seven billion, seven hundred ninety-one million, six hundred seventy-two thousand, three hundred forty-five".