645793762327 has 16 divisors (see below), whose sum is σ = 756065705472. Its totient is φ = 540054779040.

The previous prime is 645793762261. The next prime is 645793762423. The reversal of 645793762327 is 723267397546.

It is a happy number.

645793762327 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 645793762327 - 2¹¹ = 645793760279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645793762027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 942424 + ... + 1476397.

It is an arithmetic number, because the mean of its divisors is an integer number (47254106592).

Almost surely, 2^645793762327 is an apocalyptic number.

645793762327 is a deficient number, since it is larger than the sum of its proper divisors (110271943145).

645793762327 is a wasteful number, since it uses less digits than its factorization.

645793762327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419758.

The product of its digits is 80015040, while the sum is 61.

The spelling of 645793762327 in words is "six hundred forty-five billion, seven hundred ninety-three million, seven hundred sixty-two thousand, three hundred twenty-seven".