513951690011697 has 20 divisors (see below), whose sum is σ = 877434278539456. Its totient is φ = 293686680006360.

The previous prime is 513951690011689. The next prime is 513951690011713. The reversal of 513951690011697 is 796110096159315.

513951690011697 is a `hidden beast` number, since 5 + 13 + 9 + 516 + 9 + 0 + 0 + 1 + 16 + 97 = 666.

It is not a de Polignac number, because 513951690011697 - 2³ = 513951690011689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513951690011687) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 453220184629 + ... + 453220185762.

Almost surely, 2^{513951690011697} is an apocalyptic number.

It is an amenable number.

513951690011697 is a deficient number, since it is larger than the sum of its proper divisors (363482588527759).

513951690011697 is an equidigital number, since it uses as much as digits as its factorization.

513951690011697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906440370410 (or 906440370401 counting only the distinct ones).

The product of its (nonzero) digits is 13778100, while the sum is 63.

The spelling of 513951690011697 in words is "five hundred thirteen trillion, nine hundred fifty-one billion, six hundred ninety million, eleven thousand, six hundred ninety-seven".