675215201378844 has 54 divisors (see below), whose sum is σ = 1985454223107264. Its totient is φ = 192918628964880.

The previous prime is 675215201378833. The next prime is 675215201378867. The reversal of 675215201378844 is 448873102512576.

675215201378844 is a `hidden beast` number, since 6 + 7 + 5 + 2 + 15 + 201 + 378 + 8 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 191387526972 + ... + 191387530499.

Almost surely, 2^{675215201378844} is an apocalyptic number.

It is an amenable number.

675215201378844 is an abundant number, since it is smaller than the sum of its proper divisors (1310239021728420).

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

675215201378844 is a wasteful number, since it uses less digits than its factorization.

675215201378844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382775057495 (or 382775057483 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 63.

The spelling of 675215201378844 in words is "six hundred seventy-five trillion, two hundred fifteen billion, two hundred one million, three hundred seventy-eight thousand, eight hundred forty-four".