40487817505 has 16 divisors (see below), whose sum is σ = 50341124160. Its totient is φ = 31240475968.

The previous prime is 40487817467. The next prime is 40487817547. The reversal of 40487817505 is 50571878404.

It is a cyclic number.

It is not a de Polignac number, because 40487817505 - 2¹⁵ = 40487784737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1279147 + ... + 1310416.

It is an arithmetic number, because the mean of its divisors is an integer number (3146320260).

Almost surely, 2^40487817505 is an apocalyptic number.

It is an amenable number.

40487817505 is a deficient number, since it is larger than the sum of its proper divisors (9853306655).

40487817505 is a wasteful number, since it uses less digits than its factorization.

40487817505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589680.

The product of its (nonzero) digits is 1254400, while the sum is 49.

The spelling of 40487817505 in words is "forty billion, four hundred eighty-seven million, eight hundred seventeen thousand, five hundred five".