84901143853 has 2 divisors, whose sum is σ = 84901143854. Its totient is φ = 84901143852.

The previous prime is 84901143841. The next prime is 84901143871. The reversal of 84901143853 is 35834110948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71103822409 + 13797321444 = 266653^2 + 117462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84901143853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84901143553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42450571926 + 42450571927.

It is an arithmetic number, because the mean of its divisors is an integer number (42450571927).

Almost surely, 2^84901143853 is an apocalyptic number.

It is an amenable number.

84901143853 is a deficient number, since it is larger than the sum of its proper divisors (1).

84901143853 is an equidigital number, since it uses as much as digits as its factorization.

84901143853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 84901143853 in words is "eighty-four billion, nine hundred one million, one hundred forty-three thousand, eight hundred fifty-three".