387494860019 has 4 divisors (see below), whose sum is σ = 387498933696. Its totient is φ = 387490786344.

The previous prime is 387494860003. The next prime is 387494860043. The reversal of 387494860019 is 910068494783.

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 387494860019 - 2⁴ = 387494860003 is a prime.

It is a super-2 number, since 2×387494860019² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 387494860019.

It is not an unprimeable number, because it can be changed into a prime (387494860079) 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, 1890659 + ... + 2085564.

It is an arithmetic number, because the mean of its divisors is an integer number (96874733424).

Almost surely, 2^387494860019 is an apocalyptic number.

387494860019 is a deficient number, since it is larger than the sum of its proper divisors (4073677).

387494860019 is an equidigital number, since it uses as much as digits as its factorization.

387494860019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073676.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 387494860019 in words is "three hundred eighty-seven billion, four hundred ninety-four million, eight hundred sixty thousand, nineteen".