4638987315 has 16 divisors (see below), whose sum is σ = 8247088800. Its totient is φ = 2474126496.

The previous prime is 4638987263. The next prime is 4638987329. The reversal of 4638987315 is 5137898364.

It is not a de Polignac number, because 4638987315 - 2⁷ = 4638987187 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17181300 + ... + 17181569.

It is an arithmetic number, because the mean of its divisors is an integer number (515443050).

Almost surely, 2^4638987315 is an apocalyptic number.

4638987315 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4638987315 is a deficient number, since it is larger than the sum of its proper divisors (3608101485).

4638987315 is a wasteful number, since it uses less digits than its factorization.

4638987315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34362883 (or 34362877 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 4638987315 is about 68110.1116942264. Note that the first 3 decimals coincide. The cubic root of 4638987315 is about 1667.7888331869.

The spelling of 4638987315 in words is "four billion, six hundred thirty-eight million, nine hundred eighty-seven thousand, three hundred fifteen".