40587749787 has 32 divisors (see below), whose sum is σ = 58805125120. Its totient is φ = 24752407680.

The previous prime is 40587749777. The next prime is 40587749801. The reversal of 40587749787 is 78794778504.

It is not a de Polignac number, because 40587749787 - 2¹⁵ = 40587717019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40587749717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4904289 + ... + 4912557.

It is an arithmetic number, because the mean of its divisors is an integer number (1837660160).

Almost surely, 2^40587749787 is an apocalyptic number.

40587749787 is a deficient number, since it is larger than the sum of its proper divisors (18217375333).

40587749787 is a wasteful number, since it uses less digits than its factorization.

40587749787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9403.

The product of its (nonzero) digits is 110638080, while the sum is 66.

The spelling of 40587749787 in words is "forty billion, five hundred eighty-seven million, seven hundred forty-nine thousand, seven hundred eighty-seven".