387864468783 has 12 divisors (see below), whose sum is σ = 611180375208. Its totient is φ = 235069374960.

The previous prime is 387864468757. The next prime is 387864468883.

387864468783 is a `hidden beast` number, since 3 + 8 + 7 + 86 + 4 + 468 + 7 + 83 = 666.

387864468783 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 387864468783 - 2⁸ = 387864468527 is a prime.

It is a super-2 number, since 2×387864468783² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387864468283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1958911360 + ... + 1958911557.

It is an arithmetic number, because the mean of its divisors is an integer number (50931697934).

Almost surely, 2^387864468783 is an apocalyptic number.

387864468783 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

387864468783 is a deficient number, since it is larger than the sum of its proper divisors (223315906425).

387864468783 is a wasteful number, since it uses less digits than its factorization.

387864468783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917822934 (or 3917822931 counting only the distinct ones).

The product of its digits is 1040449536, while the sum is 72.

The spelling of 387864468783 in words is "three hundred eighty-seven billion, eight hundred sixty-four million, four hundred sixty-eight thousand, seven hundred eighty-three".