787666440624 has 80 divisors (see below), whose sum is σ = 2325607008768. Its totient is φ = 225036366336.

The previous prime is 787666440611. The next prime is 787666440637. The reversal of 787666440624 is 426044666787.

It is an interprime number because it is at equal distance from previous prime (787666440611) and next prime (787666440637).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8639244 + ... + 8729940.

Almost surely, 2^787666440624 is an apocalyptic number.

It is an amenable number.

787666440624 is an abundant number, since it is smaller than the sum of its proper divisors (1537940568144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

787666440624 is a wasteful number, since it uses less digits than its factorization.

787666440624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116562 (or 116556 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 60.

The spelling of 787666440624 in words is "seven hundred eighty-seven billion, six hundred sixty-six million, four hundred forty thousand, six hundred twenty-four".