7772821226072 has 64 divisors (see below), whose sum is σ = 16707450577920. Its totient is φ = 3320937595008.

The previous prime is 7772821226047. The next prime is 7772821226113. The reversal of 7772821226072 is 2706221282777.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39541613 + ... + 39737699.

It is an arithmetic number, because the mean of its divisors is an integer number (261053915280).

Almost surely, 2^{7772821226072} is an apocalyptic number.

It is an amenable number.

7772821226072 is an abundant number, since it is smaller than the sum of its proper divisors (8934629351848).

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

7772821226072 is a wasteful number, since it uses less digits than its factorization.

7772821226072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198280 (or 198276 counting only the distinct ones).

The product of its (nonzero) digits is 3687936, while the sum is 53.

The spelling of 7772821226072 in words is "seven trillion, seven hundred seventy-two billion, eight hundred twenty-one million, two hundred twenty-six thousand, seventy-two".