672773377276 has 144 divisors (see below), whose sum is σ = 1622316239712. Its totient is φ = 241955239680.

The previous prime is 672773377249. The next prime is 672773377277.

It is a happy number.

672773377276 is nontrivially palindromic in base 10.

672773377276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672773377277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3292200 + ... + 3490576.

It is an arithmetic number, because the mean of its divisors is an integer number (11266084998).

Almost surely, 2^672773377276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672773377276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (811158119856).

672773377276 is an abundant number, since it is smaller than the sum of its proper divisors (949542862436).

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

672773377276 is a wasteful number, since it uses less digits than its factorization.

672773377276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198441 (or 198410 counting only the distinct ones).

The product of its digits is 152473104, while the sum is 64.

The spelling of 672773377276 in words is "six hundred seventy-two billion, seven hundred seventy-three million, three hundred seventy-seven thousand, two hundred seventy-six".