40057689687 has 8 divisors (see below), whose sum is σ = 54315511680. Its totient is φ = 26252497080.

The previous prime is 40057689671. The next prime is 40057689703. The reversal of 40057689687 is 78698675004.

It is an interprime number because it is at equal distance from previous prime (40057689671) and next prime (40057689703).

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

It is not a de Polignac number, because 40057689687 - 2⁴ = 40057689671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40057689687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40057689787) 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, 113157139 + ... + 113157492.

It is an arithmetic number, because the mean of its divisors is an integer number (6789438960).

Almost surely, 2^40057689687 is an apocalyptic number.

40057689687 is a deficient number, since it is larger than the sum of its proper divisors (14257821993).

40057689687 is a wasteful number, since it uses less digits than its factorization.

40057689687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226314693.

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 40057689687 in words is "forty billion, fifty-seven million, six hundred eighty-nine thousand, six hundred eighty-seven".