43725370394 has 8 divisors (see below), whose sum is σ = 65595418068. Its totient is φ = 21860231040.

The previous prime is 43725370391. The next prime is 43725370399. The reversal of 43725370394 is 49307352734.

It can be written as a sum of positive squares in 2 ways, for example, as 43436812225 + 288558169 = 208415^2 + 16987^2 .

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

It is not an unprimeable number, because it can be changed into a prime (43725370391) 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, 1204727 + ... + 1240490.

Almost surely, 2^43725370394 is an apocalyptic number.

43725370394 is a deficient number, since it is larger than the sum of its proper divisors (21870047674).

43725370394 is a wasteful number, since it uses less digits than its factorization.

43725370394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454160.

The product of its (nonzero) digits is 1905120, while the sum is 47.

The spelling of 43725370394 in words is "forty-three billion, seven hundred twenty-five million, three hundred seventy thousand, three hundred ninety-four".