1820491436046 has 16 divisors (see below), whose sum is σ = 3674386386000. Its totient is φ = 601263226368.

The previous prime is 1820491436039. The next prime is 1820491436059. The reversal of 1820491436046 is 6406341940281.

It is a happy number.

It is a super-2 number, since 2×1820491436046² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1820491435986 and 1820491436004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391812371 + ... + 1391813678.

It is an arithmetic number, because the mean of its divisors is an integer number (229649149125).

Almost surely, 2^{1820491436046} is an apocalyptic number.

1820491436046 is an abundant number, since it is smaller than the sum of its proper divisors (1853894949954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1820491436046 is a wasteful number, since it uses less digits than its factorization.

1820491436046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783626163.

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 1820491436046 in words is "one trillion, eight hundred twenty billion, four hundred ninety-one million, four hundred thirty-six thousand, forty-six".