4644451847157 has 4 divisors (see below), whose sum is σ = 6192602462880. Its totient is φ = 3096301231436.

The previous prime is 4644451847153. The next prime is 4644451847171. The reversal of 4644451847157 is 7517481544464.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4644451847157 - 2² = 4644451847153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4644451847157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644451847153) 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, 774075307857 + ... + 774075307862.

It is an arithmetic number, because the mean of its divisors is an integer number (1548150615720).

Almost surely, 2^{4644451847157} is an apocalyptic number.

It is an amenable number.

4644451847157 is a deficient number, since it is larger than the sum of its proper divisors (1548150615723).

4644451847157 is a wasteful number, since it uses less digits than its factorization.

4644451847157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548150615722.

The product of its digits is 60211200, while the sum is 60.

The spelling of 4644451847157 in words is "four trillion, six hundred forty-four billion, four hundred fifty-one million, eight hundred forty-seven thousand, one hundred fifty-seven".