77133847878674 has 16 divisors (see below), whose sum is σ = 115929798710040. Its totient is φ = 38490583887360.

The previous prime is 77133847878617. The next prime is 77133847878691. The reversal of 77133847878674 is 47687874833177.

77133847878674 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 71121274155649 + 6012573723025 = 8433343^2 + 2452055^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72934892 + ... + 73984904.

Almost surely, 2^{77133847878674} is an apocalyptic number.

77133847878674 is a deficient number, since it is larger than the sum of its proper divisors (38795950831366).

77133847878674 is a wasteful number, since it uses less digits than its factorization.

77133847878674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122685.

The product of its digits is 7434878976, while the sum is 80.

The spelling of 77133847878674 in words is "seventy-seven trillion, one hundred thirty-three billion, eight hundred forty-seven million, eight hundred seventy-eight thousand, six hundred seventy-four".