18393040753 has 2 divisors, whose sum is σ = 18393040754. Its totient is φ = 18393040752.

The previous prime is 18393040717. The next prime is 18393040759. The reversal of 18393040753 is 35704039381.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14867412624 + 3525628129 = 121932^2 + 59377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18393040753 is a prime.

It is a super-3 number, since 3×18393040753³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (18393040759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9196520376 + 9196520377.

It is an arithmetic number, because the mean of its divisors is an integer number (9196520377).

Almost surely, 2^18393040753 is an apocalyptic number.

It is an amenable number.

18393040753 is a deficient number, since it is larger than the sum of its proper divisors (1).

18393040753 is an equidigital number, since it uses as much as digits as its factorization.

18393040753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 18393040753 in words is "eighteen billion, three hundred ninety-three million, forty thousand, seven hundred fifty-three".