40688086442 has 8 divisors (see below), whose sum is σ = 61048921476. Its totient is φ = 20338445952.

The previous prime is 40688086421. The next prime is 40688086469. The reversal of 40688086442 is 24468088604.

It can be written as a sum of positive squares in 2 ways, for example, as 39092802961 + 1595283481 = 197719^2 + 39941^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2789543 + ... + 2804090.

Almost surely, 2^40688086442 is an apocalyptic number.

40688086442 is a deficient number, since it is larger than the sum of its proper divisors (20360835034).

40688086442 is a wasteful number, since it uses less digits than its factorization.

40688086442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597272.

The product of its (nonzero) digits is 2359296, while the sum is 50.

The spelling of 40688086442 in words is "forty billion, six hundred eighty-eight million, eighty-six thousand, four hundred forty-two".