397741945045 has 8 divisors (see below), whose sum is σ = 480330400824. Its totient is φ = 316166844864.

The previous prime is 397741945043. The next prime is 397741945049. The reversal of 397741945045 is 540549147793.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 588644644 + 397153300401 = 24262^2 + 630201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 397741945045 - 2¹ = 397741945043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397741945043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253338034 + ... + 253339603.

It is an arithmetic number, because the mean of its divisors is an integer number (60041300103).

Almost surely, 2^397741945045 is an apocalyptic number.

It is an amenable number.

397741945045 is a deficient number, since it is larger than the sum of its proper divisors (82588455779).

397741945045 is a wasteful number, since it uses less digits than its factorization.

397741945045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506677799.

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 397741945045 in words is "three hundred ninety-seven billion, seven hundred forty-one million, nine hundred forty-five thousand, forty-five".