83908202715 has 12 divisors (see below), whose sum is σ = 145440884784. Its totient is φ = 44751041424.

The previous prime is 83908202699. The next prime is 83908202759. The reversal of 83908202715 is 51720280938.

It is a happy number.

It is not a de Polignac number, because 83908202715 - 2⁴ = 83908202699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1864626727 = 83908202715 / (8 + 3 + 9 + 0 + 8 + 2 + 0 + 2 + 7 + 1 + 5).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 932313319 + ... + 932313408.

It is an arithmetic number, because the mean of its divisors is an integer number (12120073732).

Almost surely, 2^83908202715 is an apocalyptic number.

83908202715 is a deficient number, since it is larger than the sum of its proper divisors (61532682069).

83908202715 is a wasteful number, since it uses less digits than its factorization.

83908202715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864626738 (or 1864626735 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 83908202715 in words is "eighty-three billion, nine hundred eight million, two hundred two thousand, seven hundred fifteen".