513906937869 has 16 divisors (see below), whose sum is σ = 740321312192. Its totient is φ = 315220284288.

The previous prime is 513906937793. The next prime is 513906937889. The reversal of 513906937869 is 968739609315.

It is not a de Polignac number, because 513906937869 - 2¹³ = 513906929677 is a prime.

It is a super-2 number, since 2×513906937869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513906937889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21449104 + ... + 21473049.

It is an arithmetic number, because the mean of its divisors is an integer number (46270082012).

Almost surely, 2^513906937869 is an apocalyptic number.

It is an amenable number.

513906937869 is a deficient number, since it is larger than the sum of its proper divisors (226414374323).

513906937869 is a wasteful number, since it uses less digits than its factorization.

513906937869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42922476.

The product of its (nonzero) digits is 66134880, while the sum is 66.

The spelling of 513906937869 in words is "five hundred thirteen billion, nine hundred six million, nine hundred thirty-seven thousand, eight hundred sixty-nine".