4891447651 has 8 divisors (see below), whose sum is σ = 5111043840. Its totient is φ = 4672428552.

The previous prime is 4891447637. The next prime is 4891447657. The reversal of 4891447651 is 1567441984.

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 4891447651 - 2⁷ = 4891447523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4891447595 and 4891447604.

It is not an unprimeable number, because it can be changed into a prime (4891447657) 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, 126895 + ... + 160888.

It is an arithmetic number, because the mean of its divisors is an integer number (638880480).

Almost surely, 2^4891447651 is an apocalyptic number.

4891447651 is a deficient number, since it is larger than the sum of its proper divisors (219596189).

4891447651 is a wasteful number, since it uses less digits than its factorization.

4891447651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288545.

The product of its digits is 967680, while the sum is 49.

The square root of 4891447651 is about 69938.8851140766. The cubic root of 4891447651 is about 1697.5105027319.

The spelling of 4891447651 in words is "four billion, eight hundred ninety-one million, four hundred forty-seven thousand, six hundred fifty-one".