77734586872154 has 16 divisors (see below), whose sum is σ = 116624142535200. Its totient is φ = 38859873174864.

The previous prime is 77734586872141. The next prime is 77734586872177. The reversal of 77734586872154 is 45127868543777.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378464417 + ... + 378669755.

It is an arithmetic number, because the mean of its divisors is an integer number (7289008908450).

Almost surely, 2^{77734586872154} is an apocalyptic number.

77734586872154 is a deficient number, since it is larger than the sum of its proper divisors (38889555663046).

77734586872154 is a wasteful number, since it uses less digits than its factorization.

77734586872154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240557.

The product of its digits is 2212761600, while the sum is 74.

The spelling of 77734586872154 in words is "seventy-seven trillion, seven hundred thirty-four billion, five hundred eighty-six million, eight hundred seventy-two thousand, one hundred fifty-four".