7661274425 has 12 divisors (see below), whose sum is σ = 10857120576. Its totient is φ = 5253445200.

The previous prime is 7661274421. The next prime is 7661274437. The reversal of 7661274425 is 5244721667.

It is a happy number.

It is not a de Polignac number, because 7661274425 - 2² = 7661274421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7661274421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21889181 + ... + 21889530.

It is an arithmetic number, because the mean of its divisors is an integer number (904760048).

Almost surely, 2^7661274425 is an apocalyptic number.

It is an amenable number.

7661274425 is a deficient number, since it is larger than the sum of its proper divisors (3195846151).

7661274425 is a wasteful number, since it uses less digits than its factorization.

7661274425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43778728 (or 43778723 counting only the distinct ones).

The product of its digits is 564480, while the sum is 44.

The square root of 7661274425 is about 87528.7062911363. The cubic root of 7661274425 is about 1971.3648392033.

The spelling of 7661274425 in words is "seven billion, six hundred sixty-one million, two hundred seventy-four thousand, four hundred twenty-five".