1248562872864 has 72 divisors (see below), whose sum is σ = 3554498892672. Its totient is φ = 415730689920.

The previous prime is 1248562872863. The next prime is 1248562872881. The reversal of 1248562872864 is 4682782658421.

It is a happy number.

1248562872864 is a `hidden beast` number, since 1 + 2 + 4 + 8 + 562 + 8 + 7 + 2 + 8 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (1248562872863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2117044 + ... + 2641779.

It is an arithmetic number, because the mean of its divisors is an integer number (49368040176).

Almost surely, 2^{1248562872864} is an apocalyptic number.

It is an amenable number.

1248562872864 is an abundant number, since it is smaller than the sum of its proper divisors (2305936019808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1248562872864 is a wasteful number, since it uses less digits than its factorization.

1248562872864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759750 (or 4759739 counting only the distinct ones).

The product of its digits is 82575360, while the sum is 63.

The spelling of 1248562872864 in words is "one trillion, two hundred forty-eight billion, five hundred sixty-two million, eight hundred seventy-two thousand, eight hundred sixty-four".