8156647454 has 8 divisors (see below), whose sum is σ = 12246419640. Its totient is φ = 4074507576.

The previous prime is 8156647451. The next prime is 8156647519. The reversal of 8156647454 is 4547466518.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8156647451) 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, 1905404 + ... + 1909679.

It is an arithmetic number, because the mean of its divisors is an integer number (1530802455).

Almost surely, 2^8156647454 is an apocalyptic number.

8156647454 is a deficient number, since it is larger than the sum of its proper divisors (4089772186).

8156647454 is a wasteful number, since it uses less digits than its factorization.

8156647454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816154.

The product of its digits is 3225600, while the sum is 50.

The square root of 8156647454 is about 90314.1597646792. The cubic root of 8156647454 is about 2012.9696665698.

The spelling of 8156647454 in words is "eight billion, one hundred fifty-six million, six hundred forty-seven thousand, four hundred fifty-four".