7238401853 has 2 divisors, whose sum is σ = 7238401854. Its totient is φ = 7238401852.

The previous prime is 7238401817. The next prime is 7238401873. The reversal of 7238401853 is 3581048327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7224660004 + 13741849 = 84998^2 + 3707^2 .

It is a cyclic number.

It is not a de Polignac number, because 7238401853 - 2¹⁶ = 7238336317 is a prime.

It is a super-2 number, since 2×7238401853² (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 7238401853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7238401813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3619200926 + 3619200927.

It is an arithmetic number, because the mean of its divisors is an integer number (3619200927).

Almost surely, 2^7238401853 is an apocalyptic number.

It is an amenable number.

7238401853 is a deficient number, since it is larger than the sum of its proper divisors (1).

7238401853 is an equidigital number, since it uses as much as digits as its factorization.

7238401853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 7238401853 is about 85078.7979052361. The cubic root of 7238401853 is about 1934.4057005951.

The spelling of 7238401853 in words is "seven billion, two hundred thirty-eight million, four hundred one thousand, eight hundred fifty-three".