440020151264513 has 4 divisors (see below), whose sum is σ = 440175251778900. Its totient is φ = 439865050750128.

The previous prime is 440020151264467. The next prime is 440020151264539. The reversal of 440020151264513 is 315462151020044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 108943639886449 + 331076511378064 = 10437607^2 + 18195508^2 .

It is a cyclic number.

It is not a de Polignac number, because 440020151264513 - 2⁴⁰ = 438920639636737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440020151260513) 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, 77550252938 + ... + 77550258611.

It is an arithmetic number, because the mean of its divisors is an integer number (110043812944725).

Almost surely, 2^{440020151264513} is an apocalyptic number.

It is an amenable number.

440020151264513 is a deficient number, since it is larger than the sum of its proper divisors (155100514387).

440020151264513 is a wasteful number, since it uses less digits than its factorization.

440020151264513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155100514386.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 440020151264513 in words is "four hundred forty trillion, twenty billion, one hundred fifty-one million, two hundred sixty-four thousand, five hundred thirteen".