787064868925 has 24 divisors (see below), whose sum is σ = 977463811080. Its totient is φ = 628682745600.

The previous prime is 787064868917. The next prime is 787064868937. The reversal of 787064868925 is 529868460787.

It can be written as a sum of positive squares in 12 ways, for example, as 721796371396 + 65268497529 = 849586^2 + 255477^2 .

It is not a de Polignac number, because 787064868925 - 2³ = 787064868917 is a prime.

It is a super-2 number, since 2×787064868925² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48039235 + ... + 48055615.

It is an arithmetic number, because the mean of its divisors is an integer number (40727658795).

Almost surely, 2^787064868925 is an apocalyptic number.

It is an amenable number.

787064868925 is a deficient number, since it is larger than the sum of its proper divisors (190398942155).

787064868925 is a wasteful number, since it uses less digits than its factorization.

787064868925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19233 (or 19228 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 70.

The spelling of 787064868925 in words is "seven hundred eighty-seven billion, sixty-four million, eight hundred sixty-eight thousand, nine hundred twenty-five".