787867865325 has 72 divisors (see below), whose sum is σ = 1476223093800. Its totient is φ = 401147873280.

The previous prime is 787867865303. The next prime is 787867865327. The reversal of 787867865325 is 523568768787.

787867865325 is a `hidden beast` number, since 7 + 8 + 7 + 8 + 6 + 7 + 86 + 532 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 171080677161 + 616787188164 = 413619^2 + 785358^2 .

It is not a de Polignac number, because 787867865325 - 2⁶ = 787867865261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787867865327) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 97624 + ... + 1259073.

It is an arithmetic number, because the mean of its divisors is an integer number (20503098525).

Almost surely, 2^787867865325 is an apocalyptic number.

787867865325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

787867865325 is a deficient number, since it is larger than the sum of its proper divisors (688355228475).

787867865325 is a wasteful number, since it uses less digits than its factorization.

787867865325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356831 (or 1356823 counting only the distinct ones).

The product of its digits is 948326400, while the sum is 72.

The spelling of 787867865325 in words is "seven hundred eighty-seven billion, eight hundred sixty-seven million, eight hundred sixty-five thousand, three hundred twenty-five".