7948371081 has 32 divisors (see below), whose sum is σ = 12270763008. Its totient is φ = 4482434880.

The previous prime is 7948371031. The next prime is 7948371083. The reversal of 7948371081 is 1801738497.

It is not a de Polignac number, because 7948371081 - 2⁹ = 7948370569 is a prime.

It is a super-2 number, since 2×7948371081² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7948371081.

It is not an unprimeable number, because it can be changed into a prime (7948371083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2224026 + ... + 2227596.

It is an arithmetic number, because the mean of its divisors is an integer number (383461344).

Almost surely, 2^7948371081 is an apocalyptic number.

It is an amenable number.

7948371081 is a deficient number, since it is larger than the sum of its proper divisors (4322391927).

7948371081 is a wasteful number, since it uses less digits than its factorization.

7948371081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941.

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 7948371081 is about 89153.6375085167. The cubic root of 7948371081 is about 1995.6883013907.

The spelling of 7948371081 in words is "seven billion, nine hundred forty-eight million, three hundred seventy-one thousand, eighty-one".