397499521045 has 16 divisors (see below), whose sum is σ = 537148915200. Its totient is φ = 279765057600.

The previous prime is 397499521043. The next prime is 397499521057. The reversal of 397499521045 is 540125994793.

It is not a de Polignac number, because 397499521045 - 2¹ = 397499521043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397499521043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116567070 + ... + 116570479.

It is an arithmetic number, because the mean of its divisors is an integer number (33571807200).

Almost surely, 2^397499521045 is an apocalyptic number.

It is an amenable number.

397499521045 is a deficient number, since it is larger than the sum of its proper divisors (139649394155).

397499521045 is a wasteful number, since it uses less digits than its factorization.

397499521045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233137596.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 397499521045 in words is "three hundred ninety-seven billion, four hundred ninety-nine million, five hundred twenty-one thousand, forty-five".