8077115842 has 4 divisors (see below), whose sum is σ = 12115673766. Its totient is φ = 4038557920.

The previous prime is 8077115831. The next prime is 8077115881. The reversal of 8077115842 is 2485117708.

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., 7945761321 + 131354521 = 89139^2 + 11461^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2019278959 + ... + 2019278962.

Almost surely, 2^8077115842 is an apocalyptic number.

8077115842 is a deficient number, since it is larger than the sum of its proper divisors (4038557924).

8077115842 is a wasteful number, since it uses less digits than its factorization.

8077115842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038557923.

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 8077115842 is about 89872.7758667774. The cubic root of 8077115842 is about 2006.4057812454.

The spelling of 8077115842 in words is "eight billion, seventy-seven million, one hundred fifteen thousand, eight hundred forty-two".