7842451322 has 8 divisors (see below), whose sum is σ = 12455658036. Its totient is φ = 3690565312.

The previous prime is 7842451321. The next prime is 7842451363. The reversal of 7842451322 is 2231542487.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7678841641 + 163609681 = 87629^2 + 12791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (7842451321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115330133 + ... + 115330200.

Almost surely, 2^7842451322 is an apocalyptic number.

7842451322 is a deficient number, since it is larger than the sum of its proper divisors (4613206714).

7842451322 is a wasteful number, since it uses less digits than its factorization.

7842451322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230660352.

The product of its digits is 107520, while the sum is 38.

The square root of 7842451322 is about 88557.6158328577. The cubic root of 7842451322 is about 1986.7838019247.

The spelling of 7842451322 in words is "seven billion, eight hundred forty-two million, four hundred fifty-one thousand, three hundred twenty-two".