16270788249 has 15 divisors (see below), whose sum is σ = 24307460463. Its totient is φ = 10846426824.

The previous prime is 16270788223. The next prime is 16270788277. The reversal of 16270788249 is 94288707261.

It is a happy number.

The square root of 16270788249 is 127557.

It is a perfect power (a square), and thus also a powerful number.

16270788249 is a `hidden beast` number, since 1 + 627 + 0 + 7 + 8 + 8 + 2 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14124134025 + 2146654224 = 118845^2 + 46332^2 .

It is not a de Polignac number, because 16270788249 - 2¹⁵ = 16270755481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16270788195 and 16270788204.

It is not an unprimeable number, because it can be changed into a prime (16270788649) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1140927 + ... + 1155099.

Almost surely, 2^16270788249 is an apocalyptic number.

16270788249 is the 127557-th square number.

16270788249 is the 63779-th centered octagonal number.

It is an amenable number.

16270788249 is a deficient number, since it is larger than the sum of its proper divisors (8036672214).

16270788249 is an frugal number, since it uses more digits than its factorization.

16270788249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28358 (or 14176 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 16270788249 in words is "sixteen billion, two hundred seventy million, seven hundred eighty-eight thousand, two hundred forty-nine".