868011831 has 6 divisors (see below), whose sum is σ = 1253794880. Its totient is φ = 578674548.

The previous prime is 868011817. The next prime is 868011871. The reversal of 868011831 is 138110868.

It is not a de Polignac number, because 868011831 - 2²³ = 859623223 is a prime.

It is a super-2 number, since 2×868011831² = 1506889077511945122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868011871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48222871 + ... + 48222888.

Almost surely, 2^868011831 is an apocalyptic number.

868011831 is a deficient number, since it is larger than the sum of its proper divisors (385783049).

868011831 is a wasteful number, since it uses less digits than its factorization.

868011831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96445765 (or 96445762 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 868011831 is about 29462.0405097814. The cubic root of 868011831 is about 953.9125185133.

The spelling of 868011831 in words is "eight hundred sixty-eight million, eleven thousand, eight hundred thirty-one".