153046821861 has 12 divisors (see below), whose sum is σ = 221110138860. Its totient is φ = 102011595840.

The previous prime is 153046821821. The next prime is 153046821877. The reversal of 153046821861 is 168128640351.

153046821861 is a `hidden beast` number, since 1 + 5 + 3 + 0 + 468 + 2 + 186 + 1 = 666.

153046821861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 86969548836 + 66077273025 = 294906^2 + 257055^2 .

It is not a de Polignac number, because 153046821861 - 2¹¹ = 153046819813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153046821821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1585410 + ... + 1679171.

It is an arithmetic number, because the mean of its divisors is an integer number (18425844905).

Almost surely, 2^153046821861 is an apocalyptic number.

It is an amenable number.

153046821861 is a deficient number, since it is larger than the sum of its proper divisors (68063316999).

153046821861 is a wasteful number, since it uses less digits than its factorization.

153046821861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269796 (or 3269793 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 153046821861 in words is "one hundred fifty-three billion, forty-six million, eight hundred twenty-one thousand, eight hundred sixty-one".