83421667587 has 8 divisors (see below), whose sum is σ = 111233396736. Its totient is φ = 55612191752.

The previous prime is 83421667573. The next prime is 83421667597. The reversal of 83421667587 is 78576612438.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83421667587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83421667597) 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, 474963 + ... + 626444.

It is an arithmetic number, because the mean of its divisors is an integer number (13904174592).

Almost surely, 2^83421667587 is an apocalyptic number.

83421667587 is a deficient number, since it is larger than the sum of its proper divisors (27811729149).

83421667587 is a wasteful number, since it uses less digits than its factorization.

83421667587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126657.

The product of its digits is 13547520, while the sum is 57.

The spelling of 83421667587 in words is "eighty-three billion, four hundred twenty-one million, six hundred sixty-seven thousand, five hundred eighty-seven".