975868868578 has 4 divisors (see below), whose sum is σ = 1463803302870. Its totient is φ = 487934434288.

The previous prime is 975868868537. The next prime is 975868868603. The reversal of 975868868578 is 875868868579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 875868868579 = 2729 ⋅320948651.

It can be written as a sum of positive squares in only one way, i.e., 754401684969 + 221467183609 = 868563^2 + 470603^2 .

It is a junction number, because it is equal to n+sod(n) for n = 975868868495 and 975868868504.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243967217143 + ... + 243967217146.

Almost surely, 2^975868868578 is an apocalyptic number.

975868868578 is a deficient number, since it is larger than the sum of its proper divisors (487934434292).

975868868578 is a wasteful number, since it uses less digits than its factorization.

975868868578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487934434291.

The product of its digits is 13005619200, while the sum is 85.

Subtracting from 975868868578 its reverse (875868868579), we obtain a palindrome (99999999999).

The spelling of 975868868578 in words is "nine hundred seventy-five billion, eight hundred sixty-eight million, eight hundred sixty-eight thousand, five hundred seventy-eight".