83217872902 has 8 divisors (see below), whose sum is σ = 124833702816. Its totient is φ = 41606638632.

The previous prime is 83217872861. The next prime is 83217872917. The reversal of 83217872902 is 20927871238.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103278 + ... + 1176289.

It is an arithmetic number, because the mean of its divisors is an integer number (15604212852).

Almost surely, 2^83217872902 is an apocalyptic number.

83217872902 is a deficient number, since it is larger than the sum of its proper divisors (41615829914).

83217872902 is a wasteful number, since it uses less digits than its factorization.

83217872902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297822.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 83217872902 in words is "eighty-three billion, two hundred seventeen million, eight hundred seventy-two thousand, nine hundred two".