1377921694463 has 4 divisors (see below), whose sum is σ = 1377924525528. Its totient is φ = 1377918863400.

The previous prime is 1377921694459. The next prime is 1377921694483. The reversal of 1377921694463 is 3644961297731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1377921694463 - 2² = 1377921694459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1377921694396 and 1377921694405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377921694483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478856 + ... + 1727757.

It is an arithmetic number, because the mean of its divisors is an integer number (344481131382).

Almost surely, 2^{1377921694463} is an apocalyptic number.

1377921694463 is a deficient number, since it is larger than the sum of its proper divisors (2831065).

1377921694463 is an equidigital number, since it uses as much as digits as its factorization.

1377921694463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831064.

The product of its digits is 41150592, while the sum is 62.

The spelling of 1377921694463 in words is "one trillion, three hundred seventy-seven billion, nine hundred twenty-one million, six hundred ninety-four thousand, four hundred sixty-three".