77738506084028 has 24 divisors (see below), whose sum is σ = 143202798858000. Its totient is φ = 36823428914688.

The previous prime is 77738506084027. The next prime is 77738506084039. The reversal of 77738506084028 is 82048060583777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77738506084027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63767948 + ... + 64975596.

It is an arithmetic number, because the mean of its divisors is an integer number (5966783285750).

Almost surely, 2^{77738506084028} is an apocalyptic number.

It is an amenable number.

77738506084028 is a deficient number, since it is larger than the sum of its proper divisors (65464292773972).

77738506084028 is a wasteful number, since it uses less digits than its factorization.

77738506084028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054669 (or 2054667 counting only the distinct ones).

The product of its (nonzero) digits is 126443520, while the sum is 65.

The spelling of 77738506084028 in words is "seventy-seven trillion, seven hundred thirty-eight billion, five hundred six million, eighty-four thousand, twenty-eight".