7545073643 has 2 divisors, whose sum is σ = 7545073644. Its totient is φ = 7545073642.

The previous prime is 7545073639. The next prime is 7545073651. The reversal of 7545073643 is 3463705457.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7545073643 - 2² = 7545073639 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 7545073594 and 7545073603.

It is not a weakly prime, because it can be changed into another prime (7545073343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3772536821 + 3772536822.

It is an arithmetic number, because the mean of its divisors is an integer number (3772536822).

Almost surely, 2^7545073643 is an apocalyptic number.

7545073643 is a deficient number, since it is larger than the sum of its proper divisors (1).

7545073643 is an equidigital number, since it uses as much as digits as its factorization.

7545073643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 44.

The square root of 7545073643 is about 86862.3833601174. The cubic root of 7545073643 is about 1961.3472656897.

The spelling of 7545073643 in words is "seven billion, five hundred forty-five million, seventy-three thousand, six hundred forty-three".