40040486623 has 4 divisors (see below), whose sum is σ = 40074681208. Its totient is φ = 40006292040.

The previous prime is 40040486617. The next prime is 40040486671. The reversal of 40040486623 is 32668404004.

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

It is a cyclic number.

It is not a de Polignac number, because 40040486623 - 2⁹ = 40040486111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040426623) 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, 17095536 + ... + 17097877.

It is an arithmetic number, because the mean of its divisors is an integer number (10018670302).

Almost surely, 2^40040486623 is an apocalyptic number.

40040486623 is a deficient number, since it is larger than the sum of its proper divisors (34194585).

40040486623 is a wasteful number, since it uses less digits than its factorization.

40040486623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34194584.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 40040486623 in words is "forty billion, forty million, four hundred eighty-six thousand, six hundred twenty-three".