4689691278 has 8 divisors (see below), whose sum is σ = 9379382568. Its totient is φ = 1563230424.

The previous prime is 4689691271. The next prime is 4689691387. The reversal of 4689691278 is 8721969864.

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

4689691278 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4689691271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390807601 + ... + 390807612.

It is an arithmetic number, because the mean of its divisors is an integer number (1172422821).

Almost surely, 2^4689691278 is an apocalyptic number.

4689691278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4689691278 is a wasteful number, since it uses less digits than its factorization.

4689691278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781615218.

The product of its digits is 10450944, while the sum is 60.

The square root of 4689691278 is about 68481.3206502328. The cubic root of 4689691278 is about 1673.8431192365.

The spelling of 4689691278 in words is "four billion, six hundred eighty-nine million, six hundred ninety-one thousand, two hundred seventy-eight".