387617383446 has 36 divisors (see below), whose sum is σ = 778355266932. Its totient is φ = 128687793984.

The previous prime is 387617383421. The next prime is 387617383471. The reversal of 387617383446 is 644383716783.

It is an interprime number because it is at equal distance from previous prime (387617383421) and next prime (387617383471).

It is a self number, because there is not a number n which added to its sum of digits gives 387617383446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 660335965 + ... + 660336551.

It is an arithmetic number, because the mean of its divisors is an integer number (21620979637).

Almost surely, 2^387617383446 is an apocalyptic number.

387617383446 is an abundant number, since it is smaller than the sum of its proper divisors (390737883486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387617383446 is an frugal number, since it uses more digits than its factorization.

387617383446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045 (or 1025 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 60.

The spelling of 387617383446 in words is "three hundred eighty-seven billion, six hundred seventeen million, three hundred eighty-three thousand, four hundred forty-six".