745740677197 has 2 divisors, whose sum is σ = 745740677198. Its totient is φ = 745740677196.

The previous prime is 745740677117. The next prime is 745740677219. The reversal of 745740677197 is 791776047547.

745740677197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 684837347401 + 60903329796 = 827549^2 + 246786^2 .

It is an emirp because it is prime and its reverse (791776047547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 745740677197 - 2¹¹ = 745740675149 is a prime.

It is a super-2 number, since 2×745740677197² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745740677117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372870338598 + 372870338599.

It is an arithmetic number, because the mean of its divisors is an integer number (372870338599).

Almost surely, 2^745740677197 is an apocalyptic number.

It is an amenable number.

745740677197 is a deficient number, since it is larger than the sum of its proper divisors (1).

745740677197 is an equidigital number, since it uses as much as digits as its factorization.

745740677197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72606240, while the sum is 64.

The spelling of 745740677197 in words is "seven hundred forty-five billion, seven hundred forty million, six hundred seventy-seven thousand, one hundred ninety-seven".