787922279991 has 48 divisors (see below), whose sum is σ = 1433570681088. Its totient is φ = 405090547200.

The previous prime is 787922279933. The next prime is 787922280011. The reversal of 787922279991 is 199972229787.

It is not a de Polignac number, because 787922279991 - 2⁹ = 787922279479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787922279891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5793465 + ... + 5927906.

It is an arithmetic number, because the mean of its divisors is an integer number (29866055856).

Almost surely, 2^787922279991 is an apocalyptic number.

787922279991 is a deficient number, since it is larger than the sum of its proper divisors (645648401097).

787922279991 is a wasteful number, since it uses less digits than its factorization.

787922279991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11721492 (or 11721489 counting only the distinct ones).

The product of its digits is 144027072, while the sum is 72.

The spelling of 787922279991 in words is "seven hundred eighty-seven billion, nine hundred twenty-two million, two hundred seventy-nine thousand, nine hundred ninety-one".