87279090582340 has 24 divisors (see below), whose sum is σ = 185796858585240. Its totient is φ = 34433394640128.

The previous prime is 87279090582323. The next prime is 87279090582347. The reversal of 87279090582340 is 4328509097278.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 940465490176 + 86338625092164 = 969776^2 + 9291858^2 .

It is not an unprimeable number, because it can be changed into a prime (87279090582347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29890098055 + ... + 29890100974.

It is an arithmetic number, because the mean of its divisors is an integer number (7741535774385).

Almost surely, 2^{87279090582340} is an apocalyptic number.

It is an amenable number.

87279090582340 is an abundant number, since it is smaller than the sum of its proper divisors (98517768002900).

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

87279090582340 is a wasteful number, since it uses less digits than its factorization.

87279090582340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59780199111 (or 59780199109 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 87279090582340 in words is "eighty-seven trillion, two hundred seventy-nine billion, ninety million, five hundred eighty-two thousand, three hundred forty".