387015222050 has 54 divisors (see below), whose sum is σ = 728148745107. Its totient is φ = 153041230080.

The previous prime is 387015222029. The next prime is 387015222059. The reversal of 387015222050 is 50222510783.

It can be written as a sum of positive squares in 5 ways, for example, as 120673559161 + 266341662889 = 347381^2 + 516083^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=439895.

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 387015222050.

It is not an unprimeable number, because it can be changed into a prime (387015222059) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 426697697 + ... + 426698603.

Almost surely, 2^387015222050 is an apocalyptic number.

387015222050 is a deficient number, since it is larger than the sum of its proper divisors (341133523057).

387015222050 is an frugal number, since it uses more digits than its factorization.

387015222050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 387015222050 in words is "three hundred eighty-seven billion, fifteen million, two hundred twenty-two thousand, fifty".