745705436551 has 2 divisors, whose sum is σ = 745705436552. Its totient is φ = 745705436550.

The previous prime is 745705436549. The next prime is 745705436579. The reversal of 745705436551 is 155634507547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 745705436551 - 2¹ = 745705436549 is a prime.

Together with 745705436549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745705436351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372852718275 + 372852718276.

It is an arithmetic number, because the mean of its divisors is an integer number (372852718276).

Almost surely, 2^745705436551 is an apocalyptic number.

745705436551 is a deficient number, since it is larger than the sum of its proper divisors (1).

745705436551 is an equidigital number, since it uses as much as digits as its factorization.

745705436551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820000, while the sum is 52.

The spelling of 745705436551 in words is "seven hundred forty-five billion, seven hundred five million, four hundred thirty-six thousand, five hundred fifty-one".