787878377459 has 2 divisors, whose sum is σ = 787878377460. Its totient is φ = 787878377458.

The previous prime is 787878377423. The next prime is 787878377557. The reversal of 787878377459 is 954773878787.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 787878377459 - 2¹⁶ = 787878311923 is a prime.

It is not a weakly prime, because it can be changed into another prime (787878377059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393939188729 + 393939188730.

It is an arithmetic number, because the mean of its divisors is an integer number (393939188730).

Almost surely, 2^787878377459 is an apocalyptic number.

787878377459 is a deficient number, since it is larger than the sum of its proper divisors (1).

787878377459 is an equidigital number, since it uses as much as digits as its factorization.

787878377459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4646799360, while the sum is 80.

The spelling of 787878377459 in words is "seven hundred eighty-seven billion, eight hundred seventy-eight million, three hundred seventy-seven thousand, four hundred fifty-nine".