77400067434 has 16 divisors (see below), whose sum is σ = 154829813088. Its totient is φ = 25795076112.

The previous prime is 77400067403. The next prime is 77400067471. The reversal of 77400067434 is 43476000477.

It is an unprimeable number.

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, 1202617 + ... + 1265340.

It is an arithmetic number, because the mean of its divisors is an integer number (9676863318).

Almost surely, 2^77400067434 is an apocalyptic number.

77400067434 is an abundant number, since it is smaller than the sum of its proper divisors (77429745654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77400067434 is a wasteful number, since it uses less digits than its factorization.

77400067434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473189.

The product of its (nonzero) digits is 395136, while the sum is 42.

The spelling of 77400067434 in words is "seventy-seven billion, four hundred million, sixty-seven thousand, four hundred thirty-four".