40078852687 has 8 divisors (see below), whose sum is σ = 41537535840. Its totient is φ = 38625279840.

The previous prime is 40078852679. The next prime is 40078852691. The reversal of 40078852687 is 78625887004.

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

It is a cyclic number.

It is not a de Polignac number, because 40078852687 - 2³ = 40078852679 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 (40078852787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261603 + ... + 1292980.

It is an arithmetic number, because the mean of its divisors is an integer number (5192191980).

Almost surely, 2^40078852687 is an apocalyptic number.

40078852687 is a deficient number, since it is larger than the sum of its proper divisors (1458683153).

40078852687 is a wasteful number, since it uses less digits than its factorization.

40078852687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555153.

The product of its (nonzero) digits is 6021120, while the sum is 55.

The spelling of 40078852687 in words is "forty billion, seventy-eight million, eight hundred fifty-two thousand, six hundred eighty-seven".