8248649907961 has 32 divisors (see below), whose sum is σ = 8732908800000. Its totient is φ = 7781738065920.

The previous prime is 8248649907913. The next prime is 8248649908039. The reversal of 8248649907961 is 1697099468428.

It is a cyclic number.

It is not a de Polignac number, because 8248649907961 - 2⁷ = 8248649907833 is a prime.

It is a super-3 number, since 3×8248649907961³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8248649907061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239999400 + ... + 240033766.

It is an arithmetic number, because the mean of its divisors is an integer number (272903400000).

Almost surely, 2^{8248649907961} is an apocalyptic number.

It is an amenable number.

8248649907961 is a deficient number, since it is larger than the sum of its proper divisors (484258892039).

8248649907961 is a wasteful number, since it uses less digits than its factorization.

8248649907961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35809.

The product of its (nonzero) digits is 376233984, while the sum is 73.

The spelling of 8248649907961 in words is "eight trillion, two hundred forty-eight billion, six hundred forty-nine million, nine hundred seven thousand, nine hundred sixty-one".