77308543162 has 4 divisors (see below), whose sum is σ = 115962814746. Its totient is φ = 38654271580.

The previous prime is 77308543139. The next prime is 77308543189. The reversal of 77308543162 is 26134580377.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 75724582761 + 1583960401 = 275181^2 + 39799^2 .

It is a super-2 number, since 2×77308543162² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19327135789 + ... + 19327135792.

Almost surely, 2^77308543162 is an apocalyptic number.

77308543162 is a deficient number, since it is larger than the sum of its proper divisors (38654271584).

77308543162 is a wasteful number, since it uses less digits than its factorization.

77308543162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38654271583.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 77308543162 in words is "seventy-seven billion, three hundred eight million, five hundred forty-three thousand, one hundred sixty-two".