867987412740 has 72 divisors (see below), whose sum is σ = 3009023035200. Its totient is φ = 198397122624.

The previous prime is 867987412711. The next prime is 867987412777. The reversal of 867987412740 is 47214789768.

867987412740 is a `hidden beast` number, since 8 + 6 + 79 + 87 + 412 + 74 + 0 = 666.

It is a super-2 number, since 2×867987412740² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 344438190 + ... + 344440709.

It is an arithmetic number, because the mean of its divisors is an integer number (41791986600).

Almost surely, 2^867987412740 is an apocalyptic number.

It is an amenable number.

867987412740 is an abundant number, since it is smaller than the sum of its proper divisors (2141035622460).

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

867987412740 is a wasteful number, since it uses less digits than its factorization.

867987412740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688878921 (or 688878916 counting only the distinct ones).

The product of its (nonzero) digits is 37933056, while the sum is 63.

The spelling of 867987412740 in words is "eight hundred sixty-seven billion, nine hundred eighty-seven million, four hundred twelve thousand, seven hundred forty".