3641989678 has 8 divisors (see below), whose sum is σ = 5639209920. Its totient is φ = 1762253040.

The previous prime is 3641989657. The next prime is 3641989727. The reversal of 3641989678 is 8769891463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29370823 + ... + 29370946.

It is an arithmetic number, because the mean of its divisors is an integer number (704901240).

Almost surely, 2^3641989678 is an apocalyptic number.

3641989678 is a deficient number, since it is larger than the sum of its proper divisors (1997220242).

3641989678 is a wasteful number, since it uses less digits than its factorization.

3641989678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58741802.

The product of its digits is 15676416, while the sum is 61.

The square root of 3641989678 is about 60348.8995591469. The cubic root of 3641989678 is about 1538.5545663340.

The spelling of 3641989678 in words is "three billion, six hundred forty-one million, nine hundred eighty-nine thousand, six hundred seventy-eight".