397784875200384 has 128 divisors (see below), whose sum is σ = 1249201270886400. Its totient is φ = 109733758654464.

The previous prime is 397784875200341. The next prime is 397784875200431. The reversal of 397784875200384 is 483002578487793.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2551395232 + ... + 2551551135.

It is an arithmetic number, because the mean of its divisors is an integer number (9759384928800).

Almost surely, 2^{397784875200384} is an apocalyptic number.

It is an amenable number.

397784875200384 is an abundant number, since it is smaller than the sum of its proper divisors (851416395686016).

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

397784875200384 is a wasteful number, since it uses less digits than its factorization.

397784875200384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5102946420 (or 5102946408 counting only the distinct ones).

The product of its (nonzero) digits is 2275983360, while the sum is 75.

The spelling of 397784875200384 in words is "three hundred ninety-seven trillion, seven hundred eighty-four billion, eight hundred seventy-five million, two hundred thousand, three hundred eighty-four".