8061278625 has 128 divisors (see below), whose sum is σ = 16093209600. Its totient is φ = 3969504000.

The previous prime is 8061278587. The next prime is 8061278639. The reversal of 8061278625 is 5268721608.

8061278625 is a `hidden beast` number, since 8 + 0 + 6 + 12 + 7 + 8 + 625 = 666.

It is not a de Polignac number, because 8061278625 - 2⁷ = 8061278497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2249335 + ... + 2252915.

It is an arithmetic number, because the mean of its divisors is an integer number (125728200).

Almost surely, 2^8061278625 is an apocalyptic number.

It is an amenable number.

8061278625 is a deficient number, since it is larger than the sum of its proper divisors (8031930975).

8061278625 is a wasteful number, since it uses less digits than its factorization.

8061278625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657 (or 3641 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 8061278625 is about 89784.6235443464. The cubic root of 8061278625 is about 2005.0935688490.

The spelling of 8061278625 in words is "eight billion, sixty-one million, two hundred seventy-eight thousand, six hundred twenty-five".