16289420949 has 16 divisors (see below), whose sum is σ = 24693697600. Its totient is φ = 10607064048.

The previous prime is 16289420911. The next prime is 16289421053. The reversal of 16289420949 is 94902498261.

16289420949 is a `hidden beast` number, since 1 + 628 + 9 + 4 + 2 + 0 + 9 + 4 + 9 = 666.

It is not a de Polignac number, because 16289420949 - 2¹² = 16289416853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16289420895 and 16289420904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16289428949) 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, 7014094 + ... + 7016415.

It is an arithmetic number, because the mean of its divisors is an integer number (1543356100).

Almost surely, 2^16289420949 is an apocalyptic number.

It is an amenable number.

16289420949 is a deficient number, since it is larger than the sum of its proper divisors (8404276651).

16289420949 is a wasteful number, since it uses less digits than its factorization.

16289420949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14030561 (or 14030555 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 16289420949 in words is "sixteen billion, two hundred eighty-nine million, four hundred twenty thousand, nine hundred forty-nine".