328257145977 has 16 divisors (see below), whose sum is σ = 463507417152. Its totient is φ = 205927239680.

The previous prime is 328257145969. The next prime is 328257145987. The reversal of 328257145977 is 779541752823.

It is a happy number.

It is not a de Polignac number, because 328257145977 - 2³ = 328257145969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328257145977.

It is not an unprimeable number, because it can be changed into a prime (328257145927) 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, 313983 + ... + 868964.

It is an arithmetic number, because the mean of its divisors is an integer number (28969213572).

Almost surely, 2^328257145977 is an apocalyptic number.

It is an amenable number.

328257145977 is a deficient number, since it is larger than the sum of its proper divisors (135250271175).

328257145977 is a wasteful number, since it uses less digits than its factorization.

328257145977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188408.

The product of its digits is 29635200, while the sum is 60.

The spelling of 328257145977 in words is "three hundred twenty-eight billion, two hundred fifty-seven million, one hundred forty-five thousand, nine hundred seventy-seven".