77470733258 has 4 divisors (see below), whose sum is σ = 116206099890. Its totient is φ = 38735366628.

The previous prime is 77470733251. The next prime is 77470733261. The reversal of 77470733258 is 85233707477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85233707477 = 29567 ⋅2882731.

It can be written as a sum of positive squares in only one way, i.e., 77243417329 + 227315929 = 277927^2 + 15077^2 .

It is not an unprimeable number, because it can be changed into a prime (77470733251) 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, 19367683313 + ... + 19367683316.

Almost surely, 2^77470733258 is an apocalyptic number.

77470733258 is a deficient number, since it is larger than the sum of its proper divisors (38735366632).

77470733258 is a wasteful number, since it uses less digits than its factorization.

77470733258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38735366631.

The product of its (nonzero) digits is 6914880, while the sum is 53.

The spelling of 77470733258 in words is "seventy-seven billion, four hundred seventy million, seven hundred thirty-three thousand, two hundred fifty-eight".