40651808287 has 4 divisors (see below), whose sum is σ = 40655268360. Its totient is φ = 40648348216.

The previous prime is 40651808273. The next prime is 40651808291. The reversal of 40651808287 is 78280815604.

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 40651808287 - 2¹⁵ = 40651775519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40651808287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40651808887) 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, 1712353 + ... + 1735930.

It is an arithmetic number, because the mean of its divisors is an integer number (10163817090).

Almost surely, 2^40651808287 is an apocalyptic number.

40651808287 is a deficient number, since it is larger than the sum of its proper divisors (3460073).

40651808287 is a wasteful number, since it uses less digits than its factorization.

40651808287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460072.

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 40651808287 in words is "forty billion, six hundred fifty-one million, eight hundred eight thousand, two hundred eighty-seven".