40685526730 has 8 divisors (see below), whose sum is σ = 73233948132. Its totient is φ = 16274210688.

The previous prime is 40685526719. The next prime is 40685526731. The reversal of 40685526730 is 3762558604.

It can be written as a sum of positive squares in 2 ways, for example, as 37839197529 + 2846329201 = 194523^2 + 53351^2 .

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 (40685526731) 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, 2034276327 + ... + 2034276346.

Almost surely, 2^40685526730 is an apocalyptic number.

40685526730 is a deficient number, since it is larger than the sum of its proper divisors (32548421402).

40685526730 is a wasteful number, since it uses less digits than its factorization.

40685526730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068552680.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 40685526730 in words is "forty billion, six hundred eighty-five million, five hundred twenty-six thousand, seven hundred thirty".