77436606238 has 8 divisors (see below), whose sum is σ = 116173836288. Its totient is φ = 38711994144.

The previous prime is 77436606223. The next prime is 77436606263. The reversal of 77436606238 is 83260663477.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3139131 + ... + 3163702.

It is an arithmetic number, because the mean of its divisors is an integer number (14521729536).

Almost surely, 2^77436606238 is an apocalyptic number.

77436606238 is a deficient number, since it is larger than the sum of its proper divisors (38737230050).

77436606238 is a wasteful number, since it uses less digits than its factorization.

77436606238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308978.

The product of its (nonzero) digits is 6096384, while the sum is 52.

The spelling of 77436606238 in words is "seventy-seven billion, four hundred thirty-six million, six hundred six thousand, two hundred thirty-eight".