77677733143 has 2 divisors, whose sum is σ = 77677733144. Its totient is φ = 77677733142.

The previous prime is 77677733113. The next prime is 77677733303. The reversal of 77677733143 is 34133777677.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77677733143 - 2¹³ = 77677724951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77677733113) by changing a digit.

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 as a sum of consecutive naturals, namely, 38838866571 + 38838866572.

It is an arithmetic number, because the mean of its divisors is an integer number (38838866572).

Almost surely, 2^77677733143 is an apocalyptic number.

77677733143 is a deficient number, since it is larger than the sum of its proper divisors (1).

77677733143 is an equidigital number, since it uses as much as digits as its factorization.

77677733143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10890936, while the sum is 55.

The spelling of 77677733143 in words is "seventy-seven billion, six hundred seventy-seven million, seven hundred thirty-three thousand, one hundred forty-three".