438767430066 has 32 divisors (see below), whose sum is σ = 1114329982080. Its totient is φ = 125362122768.

The previous prime is 438767430037. The next prime is 438767430113. The reversal of 438767430066 is 660034767834.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 438767429994 and 438767430021.

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, 580379821 + ... + 580380576.

It is an arithmetic number, because the mean of its divisors is an integer number (34822811940).

Almost surely, 2^438767430066 is an apocalyptic number.

438767430066 is an abundant number, since it is smaller than the sum of its proper divisors (675562552014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438767430066 is a wasteful number, since it uses less digits than its factorization.

438767430066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160760415 (or 1160760409 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 54.

The spelling of 438767430066 in words is "four hundred thirty-eight billion, seven hundred sixty-seven million, four hundred thirty thousand, sixty-six".