1013568754258 has 4 divisors (see below), whose sum is σ = 1520353131390. Its totient is φ = 506784377128.

The previous prime is 1013568754201. The next prime is 1013568754349. The reversal of 1013568754258 is 8524578653101.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 999406088209 + 14162666049 = 999703^2 + 119007^2 .

It is a super-2 number, since 2×1013568754258² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1013568754199 and 1013568754208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253392188563 + ... + 253392188566.

Almost surely, 2^{1013568754258} is an apocalyptic number.

1013568754258 is a deficient number, since it is larger than the sum of its proper divisors (506784377132).

1013568754258 is an equidigital number, since it uses as much as digits as its factorization.

1013568754258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506784377131.

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 1013568754258 in words is "one trillion, thirteen billion, five hundred sixty-eight million, seven hundred fifty-four thousand, two hundred fifty-eight".