87062179840 has 156 divisors (see below), whose sum is σ = 212312489256. Its totient is φ = 34268872704.

The previous prime is 87062179837. The next prime is 87062179843. The reversal of 87062179840 is 4897126078.

It is an interprime number because it is at equal distance from previous prime (87062179837) and next prime (87062179843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87062179843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91934247 + ... + 91935193.

Almost surely, 2^87062179840 is an apocalyptic number.

87062179840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87062179840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106156244628).

87062179840 is an abundant number, since it is smaller than the sum of its proper divisors (125250309416).

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

87062179840 is an frugal number, since it uses more digits than its factorization.

87062179840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1021 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 87062179840 in words is "eighty-seven billion, sixty-two million, one hundred seventy-nine thousand, eight hundred forty".