77474290118 has 4 divisors (see below), whose sum is σ = 116211435180. Its totient is φ = 38737145058.

The previous prime is 77474290109. The next prime is 77474290151. The reversal of 77474290118 is 81109247477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81109247477 = 21757 ⋅3727961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19368572528 + ... + 19368572531.

It is an arithmetic number, because the mean of its divisors is an integer number (29052858795).

Almost surely, 2^77474290118 is an apocalyptic number.

77474290118 is a deficient number, since it is larger than the sum of its proper divisors (38737145062).

77474290118 is a wasteful number, since it uses less digits than its factorization.

77474290118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38737145061.

The product of its (nonzero) digits is 790272, while the sum is 50.

The spelling of 77474290118 in words is "seventy-seven billion, four hundred seventy-four million, two hundred ninety thousand, one hundred eighteen".