328774164979440 has 40 divisors (see below), whose sum is σ = 1019199911437008. Its totient is φ = 87673110661120.

The previous prime is 328774164979399. The next prime is 328774164979499. The reversal of 328774164979440 is 44979461477823.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684946176801 + ... + 684946177280.

Almost surely, 2^{328774164979440} is an apocalyptic number.

328774164979440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

328774164979440 is an abundant number, since it is smaller than the sum of its proper divisors (690425746457568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328774164979440 is a wasteful number, since it uses less digits than its factorization.

328774164979440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369892354097 (or 1369892354091 counting only the distinct ones).

The product of its (nonzero) digits is 2048385024, while the sum is 75.

The spelling of 328774164979440 in words is "three hundred twenty-eight trillion, seven hundred seventy-four billion, one hundred sixty-four million, nine hundred seventy-nine thousand, four hundred forty".