40005251351513 has 4 divisors (see below), whose sum is σ = 45720287258880. Its totient is φ = 34290215444148.

The previous prime is 40005251351501. The next prime is 40005251351557. The reversal of 40005251351513 is 31515315250004.

40005251351513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40005251351513 - 2¹⁸ = 40005251089369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40005251311513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2857517953673 + ... + 2857517953686.

It is an arithmetic number, because the mean of its divisors is an integer number (11430071814720).

Almost surely, 2^{40005251351513} is an apocalyptic number.

It is an amenable number.

40005251351513 is a deficient number, since it is larger than the sum of its proper divisors (5715035907367).

40005251351513 is an equidigital number, since it uses as much as digits as its factorization.

40005251351513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715035907366.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 40005251351513 in words is "forty trillion, five billion, two hundred fifty-one million, three hundred fifty-one thousand, five hundred thirteen".