904867544197644 has 48 divisors (see below), whose sum is σ = 2203176988922112. Its totient is φ = 288505712347072.

The previous prime is 904867544197613. The next prime is 904867544197663. The reversal of 904867544197644 is 446791445768409.

It is a self number, because there is not a number n which added to its sum of digits gives 904867544197644.

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, 12994522 + ... + 44481374.

It is an arithmetic number, because the mean of its divisors is an integer number (45899520602544).

Almost surely, 2^{904867544197644} is an apocalyptic number.

It is an amenable number.

904867544197644 is an abundant number, since it is smaller than the sum of its proper divisors (1298309444724468).

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

904867544197644 is a wasteful number, since it uses less digits than its factorization.

904867544197644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31591006 (or 31591004 counting only the distinct ones).

The product of its (nonzero) digits is 5852528640, while the sum is 78.

The spelling of 904867544197644 in words is "nine hundred four trillion, eight hundred sixty-seven billion, five hundred forty-four million, one hundred ninety-seven thousand, six hundred forty-four".