77233717122 has 32 divisors (see below), whose sum is σ = 154740870720. Its totient is φ = 25699043520.

The previous prime is 77233717111. The next prime is 77233717129. The reversal of 77233717122 is 22171733277.

It is a super-2 number, since 2×77233717122² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77233717129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9123972 + ... + 9132432.

It is an arithmetic number, because the mean of its divisors is an integer number (4835652210).

Almost surely, 2^77233717122 is an apocalyptic number.

77233717122 is an abundant number, since it is smaller than the sum of its proper divisors (77507153598).

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

77233717122 is a wasteful number, since it uses less digits than its factorization.

77233717122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10978.

The product of its digits is 172872, while the sum is 42.

The spelling of 77233717122 in words is "seventy-seven billion, two hundred thirty-three million, seven hundred seventeen thousand, one hundred twenty-two".