77928910134 has 32 divisors (see below), whose sum is σ = 164666319360. Its totient is φ = 24518311200.

The previous prime is 77928910133. The next prime is 77928910159. The reversal of 77928910134 is 43101982977.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77928910133) 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, 1230337 + ... + 1292124.

It is an arithmetic number, because the mean of its divisors is an integer number (5145822480).

Almost surely, 2^77928910134 is an apocalyptic number.

77928910134 is an abundant number, since it is smaller than the sum of its proper divisors (86737409226).

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

77928910134 is a wasteful number, since it uses less digits than its factorization.

77928910134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522756.

The product of its (nonzero) digits is 762048, while the sum is 51.

The spelling of 77928910134 in words is "seventy-seven billion, nine hundred twenty-eight million, nine hundred ten thousand, one hundred thirty-four".