40667500838 has 4 divisors (see below), whose sum is σ = 61001251260. Its totient is φ = 20333750418.

The previous prime is 40667500831. The next prime is 40667500847. The reversal of 40667500838 is 83800576604.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 40667500792 and 40667500801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40667500831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166875208 + ... + 10166875211.

It is an arithmetic number, because the mean of its divisors is an integer number (15250312815).

Almost surely, 2^40667500838 is an apocalyptic number.

40667500838 is a deficient number, since it is larger than the sum of its proper divisors (20333750422).

40667500838 is a wasteful number, since it uses less digits than its factorization.

40667500838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20333750421.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 40667500838 in words is "forty billion, six hundred sixty-seven million, five hundred thousand, eight hundred thirty-eight".