1387754542423 has 4 divisors (see below), whose sum is σ = 1389077474400. Its totient is φ = 1386431610448.

The previous prime is 1387754542387. The next prime is 1387754542439. The reversal of 1387754542423 is 3242454577831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1387754542423 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 (1387754552423) 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, 661464415 + ... + 661466512.

It is an arithmetic number, because the mean of its divisors is an integer number (347269368600).

Almost surely, 2^{1387754542423} is an apocalyptic number.

1387754542423 is a deficient number, since it is larger than the sum of its proper divisors (1322931977).

1387754542423 is a wasteful number, since it uses less digits than its factorization.

1387754542423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322931976.

The product of its digits is 22579200, while the sum is 55.

The spelling of 1387754542423 in words is "one trillion, three hundred eighty-seven billion, seven hundred fifty-four million, five hundred forty-two thousand, four hundred twenty-three".