1820416545052 has 48 divisors (see below), whose sum is σ = 3913997552640. Its totient is φ = 723390599232.

The previous prime is 1820416545023. The next prime is 1820416545083. The reversal of 1820416545052 is 2505456140281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36377503 + ... + 36427510.

It is an arithmetic number, because the mean of its divisors is an integer number (81541615680).

Almost surely, 2^{1820416545052} is an apocalyptic number.

It is an amenable number.

1820416545052 is an abundant number, since it is smaller than the sum of its proper divisors (2093581007588).

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

1820416545052 is a wasteful number, since it uses less digits than its factorization.

1820416545052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72805090 (or 72805088 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 43.

The spelling of 1820416545052 in words is "one trillion, eight hundred twenty billion, four hundred sixteen million, five hundred forty-five thousand, fifty-two".