40935861599 has 4 divisors (see below), whose sum is σ = 40936676040. Its totient is φ = 40935047160.

The previous prime is 40935861563. The next prime is 40935861619. The reversal of 40935861599 is 99516853904.

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 40935861599 - 2¹² = 40935857503 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 (40935866599) 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, 326492 + ... + 434129.

It is an arithmetic number, because the mean of its divisors is an integer number (10234169010).

Almost surely, 2^40935861599 is an apocalyptic number.

40935861599 is a deficient number, since it is larger than the sum of its proper divisors (814441).

40935861599 is an equidigital number, since it uses as much as digits as its factorization.

40935861599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814440.

The product of its (nonzero) digits is 10497600, while the sum is 59.

The spelling of 40935861599 in words is "forty billion, nine hundred thirty-five million, eight hundred sixty-one thousand, five hundred ninety-nine".