9940819153 has 2 divisors, whose sum is σ = 9940819154. Its totient is φ = 9940819152.

The previous prime is 9940819111. The next prime is 9940819159. The reversal of 9940819153 is 3519180499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8015979024 + 1924840129 = 89532^2 + 43873^2 .

It is an emirp because it is prime and its reverse (3519180499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9940819153 - 2¹³ = 9940810961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9940819097 and 9940819106.

It is not a weakly prime, because it can be changed into another prime (9940819159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4970409576 + 4970409577.

It is an arithmetic number, because the mean of its divisors is an integer number (4970409577).

Almost surely, 2^9940819153 is an apocalyptic number.

It is an amenable number.

9940819153 is a deficient number, since it is larger than the sum of its proper divisors (1).

9940819153 is an equidigital number, since it uses as much as digits as its factorization.

9940819153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 49.

The square root of 9940819153 is about 99703.6566681483. The cubic root of 9940819153 is about 2150.1762359952.

The spelling of 9940819153 in words is "nine billion, nine hundred forty million, eight hundred nineteen thousand, one hundred fifty-three".