7221274767740 has 24 divisors (see below), whose sum is σ = 16543284013872. Its totient is φ = 2625918097280.

The previous prime is 7221274767719. The next prime is 7221274767787. The reversal of 7221274767740 is 477674721227.

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, 16411987889 + ... + 16411988328.

It is an arithmetic number, because the mean of its divisors is an integer number (689303500578).

Almost surely, 2^{7221274767740} is an apocalyptic number.

It is an amenable number.

7221274767740 is an abundant number, since it is smaller than the sum of its proper divisors (9322009246132).

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

7221274767740 is a wasteful number, since it uses less digits than its factorization.

7221274767740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32823976237 (or 32823976235 counting only the distinct ones).

The product of its (nonzero) digits is 12907776, while the sum is 56.

The spelling of 7221274767740 in words is "seven trillion, two hundred twenty-one billion, two hundred seventy-four million, seven hundred sixty-seven thousand, seven hundred forty".