7950801840 has 80 divisors (see below), whose sum is σ = 24686062848. Its totient is φ = 2116895488.

The previous prime is 7950801821. The next prime is 7950801871. The reversal of 7950801840 is 481080597.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 7950801792 and 7950801801.

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, 129679 + ... + 180881.

Almost surely, 2^7950801840 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 7950801840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12343031424).

7950801840 is an abundant number, since it is smaller than the sum of its proper divisors (16735261008).

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

7950801840 is a wasteful number, since it uses less digits than its factorization.

7950801840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51866 (or 51860 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 7950801840 is about 89167.2688827016. The cubic root of 7950801840 is about 1995.8917201299.

The spelling of 7950801840 in words is "seven billion, nine hundred fifty million, eight hundred one thousand, eight hundred forty".