18496771249 has 16 divisors (see below), whose sum is σ = 20483904384. Its totient is φ = 16562304000.

The previous prime is 18496771231. The next prime is 18496771259. The reversal of 18496771249 is 94217769481.

It is not a de Polignac number, because 18496771249 - 2¹³ = 18496763057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18496771193 and 18496771202.

It is not an unprimeable number, because it can be changed into a prime (18496771219) 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, 171292 + ... + 257554.

It is an arithmetic number, because the mean of its divisors is an integer number (1280244024).

Almost surely, 2^18496771249 is an apocalyptic number.

It is an amenable number.

18496771249 is a deficient number, since it is larger than the sum of its proper divisors (1987133135).

18496771249 is a wasteful number, since it uses less digits than its factorization.

18496771249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86568.

The product of its digits is 6096384, while the sum is 58.

The spelling of 18496771249 in words is "eighteen billion, four hundred ninety-six million, seven hundred seventy-one thousand, two hundred forty-nine".