2498705649 has 12 divisors (see below), whose sum is σ = 3937354512. Its totient is φ = 1514367000.

The previous prime is 2498705647. The next prime is 2498705653. The reversal of 2498705649 is 9465078942.

2498705649 is a `hidden beast` number, since 2 + 4 + 9 + 8 + 70 + 564 + 9 = 666.

It is not a de Polignac number, because 2498705649 - 2¹ = 2498705647 is a prime.

It is a super-2 number, since 2×2498705649² = 12487059840689022402, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2498705595 and 2498705604.

It is not an unprimeable number, because it can be changed into a prime (2498705647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12619627 + ... + 12619824.

It is an arithmetic number, because the mean of its divisors is an integer number (328112876).

Almost surely, 2^2498705649 is an apocalyptic number.

It is an amenable number.

2498705649 is a deficient number, since it is larger than the sum of its proper divisors (1438648863).

2498705649 is a wasteful number, since it uses less digits than its factorization.

2498705649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25239468 (or 25239465 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The square root of 2498705649 is about 49987.0548142217. The cubic root of 2498705649 is about 1356.9745405858.

The spelling of 2498705649 in words is "two billion, four hundred ninety-eight million, seven hundred five thousand, six hundred forty-nine".