4391378670 has 64 divisors (see below), whose sum is σ = 12370484736. Its totient is φ = 976613760.

The previous prime is 4391378659. The next prime is 4391378671. The reversal of 4391378670 is 768731934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4391378671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274816 + ... + 290355.

It is an arithmetic number, because the mean of its divisors is an integer number (193288824).

Almost surely, 2^4391378670 is an apocalyptic number.

4391378670 is an abundant number, since it is smaller than the sum of its proper divisors (7979106066).

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

4391378670 is a wasteful number, since it uses less digits than its factorization.

4391378670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565225.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 4391378670 is about 66267.4782227300. The cubic root of 4391378670 is about 1637.5715930861.

The spelling of 4391378670 in words is "four billion, three hundred ninety-one million, three hundred seventy-eight thousand, six hundred seventy".