10542865897 has 4 divisors (see below), whose sum is σ = 10555226500. Its totient is φ = 10530505296.

The previous prime is 10542865891. The next prime is 10542865943. The reversal of 10542865897 is 79856824501.

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 2 ways, for example, as 3301536681 + 7241329216 = 57459^2 + 85096^2 .

It is a cyclic number.

It is not a de Polignac number, because 10542865897 - 2⁷ = 10542865769 is a prime.

It is a super-2 number, since 2×10542865897² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10542865891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6179022 + ... + 6180727.

It is an arithmetic number, because the mean of its divisors is an integer number (2638806625).

Almost surely, 2^10542865897 is an apocalyptic number.

It is an amenable number.

10542865897 is a deficient number, since it is larger than the sum of its proper divisors (12360603).

10542865897 is an equidigital number, since it uses as much as digits as its factorization.

10542865897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12360602.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 10542865897 in words is "ten billion, five hundred forty-two million, eight hundred sixty-five thousand, eight hundred ninety-seven".