16440887934 has 12 divisors (see below), whose sum is σ = 35621923896. Its totient is φ = 5480295972.

The previous prime is 16440887917. The next prime is 16440887941. The reversal of 16440887934 is 43978804461.

16440887934 is a `hidden beast` number, since 164 + 408 + 8 + 79 + 3 + 4 = 666.

It is a super-3 number, since 3×16440887934³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 456691314 + ... + 456691349.

It is an arithmetic number, because the mean of its divisors is an integer number (2968493658).

Almost surely, 2^16440887934 is an apocalyptic number.

16440887934 is an abundant number, since it is smaller than the sum of its proper divisors (19181035962).

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

16440887934 is a wasteful number, since it uses less digits than its factorization.

16440887934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913382671 (or 913382668 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 16440887934 in words is "sixteen billion, four hundred forty million, eight hundred eighty-seven thousand, nine hundred thirty-four".