77057186233154 has 4 divisors (see below), whose sum is σ = 115585779349734. Its totient is φ = 38528593116576.

The previous prime is 77057186233151. The next prime is 77057186233193. The reversal of 77057186233154 is 45133268175077.

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., 49270951532929 + 27786234700225 = 7019327^2 + 5271265^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77057186233093 and 77057186233102.

It is not an unprimeable number, because it can be changed into a prime (77057186233151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19264296558287 + ... + 19264296558290.

Almost surely, 2^{77057186233154} is an apocalyptic number.

77057186233154 is a deficient number, since it is larger than the sum of its proper divisors (38528593116580).

77057186233154 is a wasteful number, since it uses less digits than its factorization.

77057186233154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38528593116579.

The product of its (nonzero) digits is 29635200, while the sum is 59.

The spelling of 77057186233154 in words is "seventy-seven trillion, fifty-seven billion, one hundred eighty-six million, two hundred thirty-three thousand, one hundred fifty-four".