1377734606623 has 4 divisors (see below), whose sum is σ = 1450246954360. Its totient is φ = 1305222258888.

The previous prime is 1377734606617. The next prime is 1377734606629. The reversal of 1377734606623 is 3266064377731.

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

It is an interprime number because it is at equal distance from previous prime (1377734606617) and next prime (1377734606629).

It is a cyclic number.

It is not a de Polignac number, because 1377734606623 - 2²¹ = 1377732509471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377734606629) 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, 36256173840 + ... + 36256173877.

It is an arithmetic number, because the mean of its divisors is an integer number (362561738590).

Almost surely, 2^{1377734606623} is an apocalyptic number.

1377734606623 is a deficient number, since it is larger than the sum of its proper divisors (72512347737).

1377734606623 is an equidigital number, since it uses as much as digits as its factorization.

1377734606623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72512347736.

The product of its (nonzero) digits is 16003008, while the sum is 55.

The spelling of 1377734606623 in words is "one trillion, three hundred seventy-seven billion, seven hundred thirty-four million, six hundred six thousand, six hundred twenty-three".