787897813249 has 16 divisors (see below), whose sum is σ = 826927810560. Its totient is φ = 749273207760.

The previous prime is 787897813243. The next prime is 787897813253. The reversal of 787897813249 is 942318798787.

It is a cyclic number.

It is not a de Polignac number, because 787897813249 - 2³⁵ = 753538074881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (787897813243) 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 15 ways as a sum of consecutive naturals, for example, 4510072 + ... + 4681510.

It is an arithmetic number, because the mean of its divisors is an integer number (51682988160).

Almost surely, 2^787897813249 is an apocalyptic number.

It is an amenable number.

787897813249 is a deficient number, since it is larger than the sum of its proper divisors (39029997311).

787897813249 is a wasteful number, since it uses less digits than its factorization.

787897813249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172620.

The product of its digits is 341397504, while the sum is 73.

The spelling of 787897813249 in words is "seven hundred eighty-seven billion, eight hundred ninety-seven million, eight hundred thirteen thousand, two hundred forty-nine".