77222278074 has 32 divisors (see below), whose sum is σ = 155249199360. Its totient is φ = 25606873152.

The previous prime is 77222278057. The next prime is 77222278079. The reversal of 77222278074 is 47087222277.

It is a super-2 number, since 2×77222278074² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77222278079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1402692 + ... + 1456704.

It is an arithmetic number, because the mean of its divisors is an integer number (4851537480).

Almost surely, 2^77222278074 is an apocalyptic number.

77222278074 is an abundant number, since it is smaller than the sum of its proper divisors (78026921286).

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

77222278074 is a wasteful number, since it uses less digits than its factorization.

77222278074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55254.

The product of its (nonzero) digits is 1229312, while the sum is 48.

The spelling of 77222278074 in words is "seventy-seven billion, two hundred twenty-two million, two hundred seventy-eight thousand, seventy-four".