101851953805 has 32 divisors (see below), whose sum is σ = 142005346560. Its totient is φ = 68683507200.

The previous prime is 101851953799. The next prime is 101851953811. The reversal of 101851953805 is 508359158101.

It is an interprime number because it is at equal distance from previous prime (101851953799) and next prime (101851953811).

It is not a de Polignac number, because 101851953805 - 2⁹ = 101851953293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1373211 + ... + 1445479.

It is an arithmetic number, because the mean of its divisors is an integer number (4437667080).

Almost surely, 2^101851953805 is an apocalyptic number.

It is an amenable number.

101851953805 is a deficient number, since it is larger than the sum of its proper divisors (40153392755).

101851953805 is an equidigital number, since it uses as much as digits as its factorization.

101851953805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72949.

The product of its (nonzero) digits is 216000, while the sum is 46.

The spelling of 101851953805 in words is "one hundred one billion, eight hundred fifty-one million, nine hundred fifty-three thousand, eight hundred five".