438995902465 has 16 divisors (see below), whose sum is σ = 530492002560. Its totient is φ = 348734992320.

The previous prime is 438995902463. The next prime is 438995902507. The reversal of 438995902465 is 564209599834.

It is not a de Polignac number, because 438995902465 - 2¹ = 438995902463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438995902397 and 438995902406.

It is not an unprimeable number, because it can be changed into a prime (438995902463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044460 + ... + 1403170.

It is an arithmetic number, because the mean of its divisors is an integer number (33155750160).

Almost surely, 2^438995902465 is an apocalyptic number.

It is an amenable number.

438995902465 is a deficient number, since it is larger than the sum of its proper divisors (91496100095).

438995902465 is a wasteful number, since it uses less digits than its factorization.

438995902465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360432.

The product of its (nonzero) digits is 83980800, while the sum is 64.

The spelling of 438995902465 in words is "four hundred thirty-eight billion, nine hundred ninety-five million, nine hundred two thousand, four hundred sixty-five".