7998500070 has 192 divisors, whose sum is σ = 23096586240. Its totient is φ = 1904352000.

The previous prime is 7998500057. The next prime is 7998500071. The reversal of 7998500070 is 700058997.

7998500070 is a `hidden beast` number, since 79 + 9 + 8 + 500 + 0 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 7998499989 and 7998500025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7998500071) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16698091 + ... + 16698569.

It is an arithmetic number, because the mean of its divisors is an integer number (120294720).

Almost surely, 2^7998500070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7998500070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11548293120).

7998500070 is an abundant number, since it is smaller than the sum of its proper divisors (15098086170).

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

7998500070 is a wasteful number, since it uses less digits than its factorization.

7998500070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 7998500070 is about 89434.3338433289. Note that the first 3 decimals coincide. The cubic root of 7998500070 is about 1999.8749980207.

The spelling of 7998500070 in words is "seven billion, nine hundred ninety-eight million, five hundred thousand, seventy".