77927239403 has 12 divisors (see below), whose sum is σ = 89148600240. Its totient is φ = 67701489792.

The previous prime is 77927239373. The next prime is 77927239409. The reversal of 77927239403 is 30493272977.

It is not a de Polignac number, because 77927239403 - 2¹⁶ = 77927173867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77927239409) 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 11 ways as a sum of consecutive naturals, for example, 10367183 + ... + 10374696.

It is an arithmetic number, because the mean of its divisors is an integer number (7429050020).

Almost surely, 2^77927239403 is an apocalyptic number.

77927239403 is a deficient number, since it is larger than the sum of its proper divisors (11221360837).

77927239403 is a wasteful number, since it uses less digits than its factorization.

77927239403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20741926 (or 20741909 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 53.

The spelling of 77927239403 in words is "seventy-seven billion, nine hundred twenty-seven million, two hundred thirty-nine thousand, four hundred three".