1835188409121 has 16 divisors (see below), whose sum is σ = 2531394251904. Its totient is φ = 1181703475584.

The previous prime is 1835188409077. The next prime is 1835188409149. The reversal of 1835188409121 is 1219048815381.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1835188409121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1835188409161) 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, 60325045 + ... + 60355458.

It is an arithmetic number, because the mean of its divisors is an integer number (158212140744).

Almost surely, 2^{1835188409121} is an apocalyptic number.

It is an amenable number.

1835188409121 is a deficient number, since it is larger than the sum of its proper divisors (696205842783).

1835188409121 is a wasteful number, since it uses less digits than its factorization.

1835188409121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120680680.

The product of its (nonzero) digits is 552960, while the sum is 51.

The spelling of 1835188409121 in words is "one trillion, eight hundred thirty-five billion, one hundred eighty-eight million, four hundred nine thousand, one hundred twenty-one".