77026734152 has 8 divisors (see below), whose sum is σ = 144425126550. Its totient is φ = 38513367072.

The previous prime is 77026734151. The next prime is 77026734163. The reversal of 77026734152 is 25143762077.

It can be written as a sum of positive squares in only one way, i.e., 73242761956 + 3783972196 = 270634^2 + 61514^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (77026734151) by changing a digit.

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 as a sum of consecutive naturals, namely, 4814170877 + ... + 4814170892.

Almost surely, 2^77026734152 is an apocalyptic number.

It is an amenable number.

77026734152 is a deficient number, since it is larger than the sum of its proper divisors (67398392398).

77026734152 is a wasteful number, since it uses less digits than its factorization.

77026734152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9628341775 (or 9628341771 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 44.

The spelling of 77026734152 in words is "seventy-seven billion, twenty-six million, seven hundred thirty-four thousand, one hundred fifty-two".