4449157715 has 8 divisors (see below), whose sum is σ = 5339514768. Its totient is φ = 3558975840.

The previous prime is 4449157709. The next prime is 4449157717. The reversal of 4449157715 is 5177519444.

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

It is not a de Polignac number, because 4449157715 - 2⁸ = 4449157459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4449157715.

It is not an unprimeable number, because it can be changed into a prime (4449157717) 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, 20729 + ... + 96581.

It is an arithmetic number, because the mean of its divisors is an integer number (667439346).

Almost surely, 2^4449157715 is an apocalyptic number.

4449157715 is a deficient number, since it is larger than the sum of its proper divisors (890357053).

4449157715 is a wasteful number, since it uses less digits than its factorization.

4449157715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87589.

The product of its digits is 705600, while the sum is 47.

The square root of 4449157715 is about 66702.0068288803. The cubic root of 4449157715 is about 1644.7223737955.

The spelling of 4449157715 in words is "four billion, four hundred forty-nine million, one hundred fifty-seven thousand, seven hundred fifteen".