87400838868 has 48 divisors (see below), whose sum is σ = 233083415040. Its totient is φ = 24970113504.

The previous prime is 87400838867. The next prime is 87400838873. The reversal of 87400838868 is 86883800478.

It is a super-4 number, since 4×87400838868⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87400838867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2455543 + ... + 2490881.

It is an arithmetic number, because the mean of its divisors is an integer number (4855904480).

Almost surely, 2^87400838868 is an apocalyptic number.

It is an amenable number.

87400838868 is an abundant number, since it is smaller than the sum of its proper divisors (145682576172).

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

87400838868 is a wasteful number, since it uses less digits than its factorization.

87400838868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64796 (or 64794 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 60.

The spelling of 87400838868 in words is "eighty-seven billion, four hundred million, eight hundred thirty-eight thousand, eight hundred sixty-eight".