83953508145 has 32 divisors (see below), whose sum is σ = 146817455232. Its totient is φ = 40714071552.

The previous prime is 83953508137. The next prime is 83953508201. The reversal of 83953508145 is 54180535938.

It is a happy number.

It is not a de Polignac number, because 83953508145 - 2³ = 83953508137 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 3199852 + ... + 3225981.

It is an arithmetic number, because the mean of its divisors is an integer number (4588045476).

Almost surely, 2^83953508145 is an apocalyptic number.

It is an amenable number.

83953508145 is a deficient number, since it is larger than the sum of its proper divisors (62863947087).

83953508145 is a wasteful number, since it uses less digits than its factorization.

83953508145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6425921.

The product of its (nonzero) digits is 2592000, while the sum is 51.

The spelling of 83953508145 in words is "eighty-three billion, nine hundred fifty-three million, five hundred eight thousand, one hundred forty-five".