438534982015 has 16 divisors (see below), whose sum is σ = 572333249376. Its totient is φ = 320634864000.

The previous prime is 438534981967. The next prime is 438534982063. The reversal of 438534982015 is 510289435834.

It is an interprime number because it is at equal distance from previous prime (438534981967) and next prime (438534982063).

It is not a de Polignac number, because 438534982015 - 2¹³ = 438534973823 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 33392901 + ... + 33406030.

It is an arithmetic number, because the mean of its divisors is an integer number (35770828086).

Almost surely, 2^438534982015 is an apocalyptic number.

438534982015 is a deficient number, since it is larger than the sum of its proper divisors (133798267361).

438534982015 is a wasteful number, since it uses less digits than its factorization.

438534982015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66799050.

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 438534982015 in words is "four hundred thirty-eight billion, five hundred thirty-four million, nine hundred eighty-two thousand, fifteen".