40638514099 has 4 divisors (see below), whose sum is σ = 40726667520. Its totient is φ = 40550360680.

The previous prime is 40638514069. The next prime is 40638514121. The reversal of 40638514099 is 99041583604.

It is a happy number.

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 40638514099 - 2¹¹ = 40638512051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40638514009) 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, 44076019 + ... + 44076940.

It is an arithmetic number, because the mean of its divisors is an integer number (10181666880).

Almost surely, 2^40638514099 is an apocalyptic number.

40638514099 is a deficient number, since it is larger than the sum of its proper divisors (88153421).

40638514099 is an equidigital number, since it uses as much as digits as its factorization.

40638514099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88153420.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 40638514099 in words is "forty billion, six hundred thirty-eight million, five hundred fourteen thousand, ninety-nine".