77438982111 has 16 divisors (see below), whose sum is σ = 106884664320. Its totient is φ = 49819080960.

The previous prime is 77438982109. The next prime is 77438982121. The reversal of 77438982111 is 11128983477.

It is not a de Polignac number, because 77438982111 - 2¹ = 77438982109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77438982121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1146601 + ... + 1212258.

It is an arithmetic number, because the mean of its divisors is an integer number (6680291520).

Almost surely, 2^77438982111 is an apocalyptic number.

77438982111 is a deficient number, since it is larger than the sum of its proper divisors (29445682209).

77438982111 is a wasteful number, since it uses less digits than its factorization.

77438982111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359246.

The product of its digits is 677376, while the sum is 51.

The spelling of 77438982111 in words is "seventy-seven billion, four hundred thirty-eight million, nine hundred eighty-two thousand, one hundred eleven".