87066426421 has 8 divisors (see below), whose sum is σ = 93768675840. Its totient is φ = 80364867312.

The previous prime is 87066426401. The next prime is 87066426463. The reversal of 87066426421 is 12462466078.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87066426421 - 2⁵ = 87066426389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87066426401) 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, 106056 + ... + 430558.

It is an arithmetic number, because the mean of its divisors is an integer number (11721084480).

Almost surely, 2^87066426421 is an apocalyptic number.

It is an amenable number.

87066426421 is a deficient number, since it is larger than the sum of its proper divisors (6702249419).

87066426421 is a wasteful number, since it uses less digits than its factorization.

87066426421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345155.

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 87066426421 in words is "eighty-seven billion, sixty-six million, four hundred twenty-six thousand, four hundred twenty-one".