16412047749 has 24 divisors (see below), whose sum is σ = 24546295800. Its totient is φ = 10554364800.

The previous prime is 16412047733. The next prime is 16412047849. The reversal of 16412047749 is 94774021461.

16412047749 is a `hidden beast` number, since 16 + 4 + 120 + 477 + 49 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 357890724 + 16054157025 = 18918^2 + 126705^2 .

It is not a de Polignac number, because 16412047749 - 2⁴ = 16412047733 is a prime.

It is a super-2 number, since 2×16412047749² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16412047349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261099 + ... + 317799.

It is an arithmetic number, because the mean of its divisors is an integer number (1022762325).

Almost surely, 2^16412047749 is an apocalyptic number.

It is an amenable number.

16412047749 is a deficient number, since it is larger than the sum of its proper divisors (8134248051).

16412047749 is a wasteful number, since it uses less digits than its factorization.

16412047749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57845 (or 57842 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 16412047749 in words is "sixteen billion, four hundred twelve million, forty-seven thousand, seven hundred forty-nine".