77177036434 has 16 divisors (see below), whose sum is σ = 122097916800. Its totient is φ = 36485712144.

The previous prime is 77177036411. The next prime is 77177036437. The reversal of 77177036434 is 43463077177.

It is not an unprimeable number, because it can be changed into a prime (77177036437) 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 in 7 ways as a sum of consecutive naturals, for example, 1975722 + ... + 2014405.

It is an arithmetic number, because the mean of its divisors is an integer number (7631119800).

Almost surely, 2^77177036434 is an apocalyptic number.

77177036434 is a deficient number, since it is larger than the sum of its proper divisors (44920880366).

77177036434 is a wasteful number, since it uses less digits than its factorization.

77177036434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3990657.

The product of its (nonzero) digits is 2074464, while the sum is 49.

The spelling of 77177036434 in words is "seventy-seven billion, one hundred seventy-seven million, thirty-six thousand, four hundred thirty-four".