1810016489764 has 72 divisors (see below), whose sum is σ = 3851031635640. Its totient is φ = 741250750464.

The previous prime is 1810016489747. The next prime is 1810016489819. The reversal of 1810016489764 is 4679846100181.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 477284776164 + 1332731713600 = 690858^2 + 1154440^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1090099 + ... + 2192794.

It is an arithmetic number, because the mean of its divisors is an integer number (53486550495).

Almost surely, 2^{1810016489764} is an apocalyptic number.

1810016489764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1810016489764 is an abundant number, since it is smaller than the sum of its proper divisors (2041015145876).

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

1810016489764 is a wasteful number, since it uses less digits than its factorization.

1810016489764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283037 (or 3283028 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 1810016489764 in words is "one trillion, eight hundred ten billion, sixteen million, four hundred eighty-nine thousand, seven hundred sixty-four".