83409956842625 has 16 divisors (see below), whose sum is σ = 118966429875072. Its totient is φ = 57195398977200.

The previous prime is 83409956842613. The next prime is 83409956842679. The reversal of 83409956842625 is 52624865990438.

It is not a de Polignac number, because 83409956842625 - 2⁴ = 83409956842609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47662831607 + ... + 47662833356.

It is an arithmetic number, because the mean of its divisors is an integer number (7435401867192).

Almost surely, 2^{83409956842625} is an apocalyptic number.

It is an amenable number.

83409956842625 is a deficient number, since it is larger than the sum of its proper divisors (35556473032447).

83409956842625 is an equidigital number, since it uses as much as digits as its factorization.

83409956842625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95325664985 (or 95325664975 counting only the distinct ones).

The product of its (nonzero) digits is 895795200, while the sum is 71.

The spelling of 83409956842625 in words is "eighty-three trillion, four hundred nine billion, nine hundred fifty-six million, eight hundred forty-two thousand, six hundred twenty-five".