77406233406 has 16 divisors (see below), whose sum is σ = 157350376848. Its totient is φ = 25379092800.

The previous prime is 77406233393. The next prime is 77406233419. The reversal of 77406233406 is 60433260477.

It is an interprime number because it is at equal distance from previous prime (77406233393) and next prime (77406233419).

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 105745855 + ... + 105746586.

It is an arithmetic number, because the mean of its divisors is an integer number (9834398553).

Almost surely, 2^77406233406 is an apocalyptic number.

77406233406 is an abundant number, since it is smaller than the sum of its proper divisors (79944143442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77406233406 is a wasteful number, since it uses less digits than its factorization.

77406233406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211492507.

The product of its (nonzero) digits is 508032, while the sum is 42.

The spelling of 77406233406 in words is "seventy-seven billion, four hundred six million, two hundred thirty-three thousand, four hundred six".