787628626826787 has 12 divisors (see below), whose sum is σ = 1138418367277464. Its totient is φ = 524747640615360.

The previous prime is 787628626826711. The next prime is 787628626826813.

It is a happy number.

787628626826787 is a `hidden beast` number, since 7 + 8 + 7 + 6 + 2 + 8 + 6 + 268 + 267 + 87 = 666.

787628626826787 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 787628626826787 - 2¹⁵ = 787628626794019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 787628626826697 and 787628626826706.

It is not an unprimeable number, because it can be changed into a prime (787628626826687) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 28175868789 + ... + 28175896742.

It is an arithmetic number, because the mean of its divisors is an integer number (94868197273122).

Almost surely, 2^{787628626826787} is an apocalyptic number.

787628626826787 is a deficient number, since it is larger than the sum of its proper divisors (350789740450677).

787628626826787 is a wasteful number, since it uses less digits than its factorization.

787628626826787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56351767090 (or 56351767087 counting only the distinct ones).

The product of its digits is 101964054528, while the sum is 90.

The spelling of 787628626826787 in words is "seven hundred eighty-seven trillion, six hundred twenty-eight billion, six hundred twenty-six million, eight hundred twenty-six thousand, seven hundred eighty-seven".