1387459716923 has 16 divisors (see below), whose sum is σ = 1652454988800. Its totient is φ = 1163947955688.

The previous prime is 1387459716917. The next prime is 1387459716971. The reversal of 1387459716923 is 3296179547831.

It is not a de Polignac number, because 1387459716923 - 2¹² = 1387459712827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1387459716923.

It is not an unprimeable number, because it can be changed into a prime (1387459716823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43016561 + ... + 43048802.

It is an arithmetic number, because the mean of its divisors is an integer number (103278436800).

Almost surely, 2^{1387459716923} is an apocalyptic number.

1387459716923 is a deficient number, since it is larger than the sum of its proper divisors (264995271877).

1387459716923 is an frugal number, since it uses more digits than its factorization.

1387459716923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86065431 (or 86065417 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 65.

The spelling of 1387459716923 in words is "one trillion, three hundred eighty-seven billion, four hundred fifty-nine million, seven hundred sixteen thousand, nine hundred twenty-three".