840465000101 has 16 divisors (see below), whose sum is σ = 914073153840. Its totient is φ = 769547796480.

The previous prime is 840465000077. The next prime is 840465000103. The reversal of 840465000101 is 101000564048.

It can be written as a sum of positive squares in 8 ways, for example, as 81604492225 + 758860507876 = 285665^2 + 871126^2 .

It is not a de Polignac number, because 840465000101 - 2²² = 840460805797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840465000103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5051405 + ... + 5215133.

It is an arithmetic number, because the mean of its divisors is an integer number (57129572115).

Almost surely, 2^840465000101 is an apocalyptic number.

It is an amenable number.

840465000101 is a deficient number, since it is larger than the sum of its proper divisors (73608153739).

840465000101 is a wasteful number, since it uses less digits than its factorization.

840465000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171944.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 840465000101 its reverse (101000564048), we get a palindrome (941465564149).

The spelling of 840465000101 in words is "eight hundred forty billion, four hundred sixty-five million, one hundred one", and thus it is an aban number.