7425651840 has 256 divisors, whose sum is σ = 24647932800. Its totient is φ = 1899233280.

The previous prime is 7425651823. The next prime is 7425651851. The reversal of 7425651840 is 481565247.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7425651792 and 7425651801.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10745895 + ... + 10746585.

Almost surely, 2^7425651840 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 7425651840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12323966400).

7425651840 is an abundant number, since it is smaller than the sum of its proper divisors (17222280960).

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

7425651840 is a wasteful number, since it uses less digits than its factorization.

7425651840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 923 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 7425651840 is about 86172.2219743694. The cubic root of 7425651840 is about 1950.9442580024.

The spelling of 7425651840 in words is "seven billion, four hundred twenty-five million, six hundred fifty-one thousand, eight hundred forty".