77373072222 has 16 divisors (see below), whose sum is σ = 156278285712. Its totient is φ = 25535667200.

The previous prime is 77373072199. The next prime is 77373072241. The reversal of 77373072222 is 22227037377.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63838563 + ... + 63839774.

It is an arithmetic number, because the mean of its divisors is an integer number (9767392857).

Almost surely, 2^77373072222 is an apocalyptic number.

77373072222 is an abundant number, since it is smaller than the sum of its proper divisors (78905213490).

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

77373072222 is a wasteful number, since it uses less digits than its factorization.

77373072222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127678443.

The product of its (nonzero) digits is 345744, while the sum is 42.

The spelling of 77373072222 in words is "seventy-seven billion, three hundred seventy-three million, seventy-two thousand, two hundred twenty-two".