1563813013867 has 48 divisors (see below), whose sum is σ = 1777565569248. Its totient is φ = 1373799398400.

The previous prime is 1563813013831. The next prime is 1563813013871. The reversal of 1563813013867 is 7683103183651.

It is not a de Polignac number, because 1563813013867 - 2¹⁵ = 1563812981099 is a prime.

It is a super-2 number, since 2×1563813013867² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1563813013967) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52403983 + ... + 52433815.

It is an arithmetic number, because the mean of its divisors is an integer number (37032616026).

Almost surely, 2^{1563813013867} is an apocalyptic number.

1563813013867 is a deficient number, since it is larger than the sum of its proper divisors (213752555381).

1563813013867 is a wasteful number, since it uses less digits than its factorization.

1563813013867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30080 (or 30067 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 1563813013867 in words is "one trillion, five hundred sixty-three billion, eight hundred thirteen million, thirteen thousand, eight hundred sixty-seven".