384747957061 has 8 divisors (see below), whose sum is σ = 414476757464. Its totient is φ = 355038128640.

The previous prime is 384747957049. The next prime is 384747957179. The reversal of 384747957061 is 160759747483.

It can be written as a sum of positive squares in 4 ways, for example, as 36287964036 + 348459993025 = 190494^2 + 590305^2 .

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

It is not a de Polignac number, because 384747957061 - 2¹¹ = 384747955013 is a prime.

It is a super-2 number, since 2×384747957061² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384747951061) 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, 4700856 + ... + 4782001.

It is an arithmetic number, because the mean of its divisors is an integer number (51809594683).

Almost surely, 2^384747957061 is an apocalyptic number.

It is an amenable number.

384747957061 is a deficient number, since it is larger than the sum of its proper divisors (29728800403).

384747957061 is a wasteful number, since it uses less digits than its factorization.

384747957061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9485991.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 384747957061 in words is "three hundred eighty-four billion, seven hundred forty-seven million, nine hundred fifty-seven thousand, sixty-one".