513778901193 has 12 divisors (see below), whose sum is σ = 747968585728. Its totient is φ = 339822264600.

The previous prime is 513778901149. The next prime is 513778901261. The reversal of 513778901193 is 391109877315.

513778901193 is a `hidden beast` number, since 5 + 1 + 377 + 89 + 0 + 1 + 193 = 666.

It is not a de Polignac number, because 513778901193 - 2²⁹ = 513242030281 is a prime.

It is a super-2 number, since 2×513778901193² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513778901893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224749033 + ... + 224751318.

Almost surely, 2^513778901193 is an apocalyptic number.

It is an amenable number.

513778901193 is a deficient number, since it is larger than the sum of its proper divisors (234189684535).

513778901193 is a wasteful number, since it uses less digits than its factorization.

513778901193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449500484 (or 449500481 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The spelling of 513778901193 in words is "five hundred thirteen billion, seven hundred seventy-eight million, nine hundred one thousand, one hundred ninety-three".