869802239488 has 480 divisors, whose sum is σ = 2308191953760. Its totient is φ = 323984424960.

The previous prime is 869802239417. The next prime is 869802239491. The reversal of 869802239488 is 884932208968.

It is a happy number.

It is a super-5 number, since 5×869802239488⁵ (a number of 61 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 387784095 + ... + 387786337.

It is an arithmetic number, because the mean of its divisors is an integer number (4808733237).

Almost surely, 2^869802239488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869802239488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154095976880).

869802239488 is an abundant number, since it is smaller than the sum of its proper divisors (1438389714272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869802239488 is a wasteful number, since it uses less digits than its factorization.

869802239488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358 (or 2335 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 67.

The spelling of 869802239488 in words is "eight hundred sixty-nine billion, eight hundred two million, two hundred thirty-nine thousand, four hundred eighty-eight".