7854661229 has 8 divisors (see below), whose sum is σ = 7880995320. Its totient is φ = 7828356096.

The previous prime is 7854661153. The next prime is 7854661247. The reversal of 7854661229 is 9221664587.

It can be written as a sum of positive squares in 4 ways, for example, as 1190388004 + 6664273225 = 34502^2 + 81635^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7854661229 - 2²⁴ = 7837884013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7854661429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626777 + ... + 639185.

It is an arithmetic number, because the mean of its divisors is an integer number (985124415).

Almost surely, 2^7854661229 is an apocalyptic number.

It is an amenable number.

7854661229 is a deficient number, since it is larger than the sum of its proper divisors (26334091).

7854661229 is a wasteful number, since it uses less digits than its factorization.

7854661229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14479.

The product of its digits is 1451520, while the sum is 50.

The square root of 7854661229 is about 88626.5266666815. The cubic root of 7854661229 is about 1987.8143413999.

The spelling of 7854661229 in words is "seven billion, eight hundred fifty-four million, six hundred sixty-one thousand, two hundred twenty-nine".