77009394026 has 8 divisors (see below), whose sum is σ = 115536840804. Its totient is φ = 38497113760.

The previous prime is 77009394017. The next prime is 77009394071. The reversal of 77009394026 is 62049390077.

It can be written as a sum of positive squares in 2 ways, for example, as 73576020001 + 3433374025 = 271249^2 + 58595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3778925 + ... + 3799248.

Almost surely, 2^77009394026 is an apocalyptic number.

77009394026 is a deficient number, since it is larger than the sum of its proper divisors (38527446778).

77009394026 is a wasteful number, since it uses less digits than its factorization.

77009394026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583256.

The product of its (nonzero) digits is 571536, while the sum is 47.

The spelling of 77009394026 in words is "seventy-seven billion, nine million, three hundred ninety-four thousand, twenty-six".