867654499140 has 1440 divisors, whose sum is σ = 3406566240000. Its totient is φ = 183361812480.

The previous prime is 867654499069. The next prime is 867654499177. The reversal of 867654499140 is 41994456768.

867654499140 is a `hidden beast` number, since 8 + 6 + 7 + 65 + 449 + 91 + 40 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 4360072761 + ... + 4360072959.

It is an arithmetic number, because the mean of its divisors is an integer number (2365671000).

Almost surely, 2^867654499140 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 867654499140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1703283120000).

867654499140 is an abundant number, since it is smaller than the sum of its proper divisors (2538911740860).

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

867654499140 is a wasteful number, since it uses less digits than its factorization.

867654499140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 867654499140 in words is "eight hundred sixty-seven billion, six hundred fifty-four million, four hundred ninety-nine thousand, one hundred forty".