77462436434 has 4 divisors (see below), whose sum is σ = 116193654654. Its totient is φ = 38731218216.

The previous prime is 77462436407. The next prime is 77462436503. The reversal of 77462436434 is 43463426477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43463426477 = 14293 ⋅3040889.

It can be written as a sum of positive squares in only one way, i.e., 66205863025 + 11256573409 = 257305^2 + 106097^2 .

It is an unprimeable number.

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, 19365609107 + ... + 19365609110.

Almost surely, 2^77462436434 is an apocalyptic number.

77462436434 is a deficient number, since it is larger than the sum of its proper divisors (38731218220).

77462436434 is a wasteful number, since it uses less digits than its factorization.

77462436434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38731218219.

The product of its digits is 8128512, while the sum is 50.

The spelling of 77462436434 in words is "seventy-seven billion, four hundred sixty-two million, four hundred thirty-six thousand, four hundred thirty-four".