77671429659 has 64 divisors (see below), whose sum is σ = 127322357760. Its totient is φ = 47162217600.

The previous prime is 77671429657. The next prime is 77671429739. The reversal of 77671429659 is 95692417677.

It is not a de Polignac number, because 77671429659 - 2¹ = 77671429657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77671429596 and 77671429605.

It is not an unprimeable number, because it can be changed into a prime (77671429657) 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 63 ways as a sum of consecutive naturals, for example, 1118854 + ... + 1186244.

It is an arithmetic number, because the mean of its divisors is an integer number (1989411840).

Almost surely, 2^77671429659 is an apocalyptic number.

77671429659 is a deficient number, since it is larger than the sum of its proper divisors (49650928101).

77671429659 is an equidigital number, since it uses as much as digits as its factorization.

77671429659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67460 (or 67442 counting only the distinct ones).

The product of its digits is 40007520, while the sum is 63.

The spelling of 77671429659 in words is "seventy-seven billion, six hundred seventy-one million, four hundred twenty-nine thousand, six hundred fifty-nine".