77162713088 has 26 divisors (see below), whose sum is σ = 154306595814. Its totient is φ = 38581354496.

The previous prime is 77162713081. The next prime is 77162713109. The reversal of 77162713088 is 88031726177.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70986010624 + 6176702464 = 266432^2 + 78592^2 .

It is a super-2 number, since 2×77162713088² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77162713081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9415181 + ... + 9423372.

Almost surely, 2^77162713088 is an apocalyptic number.

It is an amenable number.

77162713088 is a deficient number, since it is larger than the sum of its proper divisors (77143882726).

77162713088 is an equidigital number, since it uses as much as digits as its factorization.

77162713088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18838577 (or 18838555 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 50.

The spelling of 77162713088 in words is "seventy-seven billion, one hundred sixty-two million, seven hundred thirteen thousand, eighty-eight".