387145441922 has 6 divisors (see below), whose sum is σ = 580719482793. Its totient is φ = 193572280992.

The previous prime is 387145441919. The next prime is 387145441957. The reversal of 387145441922 is 229144541783.

It can be written as a sum of positive squares in 2 ways, for example, as 216866244721 + 170279197201 = 465689^2 + 412649^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=439969.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 659954 + ... + 1099922.

Almost surely, 2^387145441922 is an apocalyptic number.

387145441922 is a deficient number, since it is larger than the sum of its proper divisors (193574040871).

387145441922 is an frugal number, since it uses more digits than its factorization.

387145441922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879940 (or 439971 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

Multiplying 387145441922 by its sum of digits (50), we get a square (19357272096100 = 4399690²).

The spelling of 387145441922 in words is "three hundred eighty-seven billion, one hundred forty-five million, four hundred forty-one thousand, nine hundred twenty-two".