387736861423 has 4 divisors (see below), whose sum is σ = 392644923040. Its totient is φ = 382828799808.

The previous prime is 387736861403. The next prime is 387736861531. The reversal of 387736861423 is 324168637783.

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-387736861423 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 (387736861403) 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, 2454030690 + ... + 2454030847.

It is an arithmetic number, because the mean of its divisors is an integer number (98161230760).

Almost surely, 2^387736861423 is an apocalyptic number.

387736861423 is a deficient number, since it is larger than the sum of its proper divisors (4908061617).

387736861423 is an equidigital number, since it uses as much as digits as its factorization.

387736861423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908061616.

The product of its digits is 24385536, while the sum is 58.

The spelling of 387736861423 in words is "three hundred eighty-seven billion, seven hundred thirty-six million, eight hundred sixty-one thousand, four hundred twenty-three".