2145489436000 has 48 divisors (see below), whose sum is σ = 5271467554080. Its totient is φ = 858195772800.

The previous prime is 2145489435977. The next prime is 2145489436007. The reversal of 2145489436000 is 6349845412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145489436007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268182180 + ... + 268190179.

It is an arithmetic number, because the mean of its divisors is an integer number (109822240710).

Almost surely, 2^{2145489436000} is an apocalyptic number.

2145489436000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145489436000 is an abundant number, since it is smaller than the sum of its proper divisors (3125978118080).

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

2145489436000 is an equidigital number, since it uses as much as digits as its factorization.

2145489436000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536372384 (or 536372366 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 2145489436000 in words is "two trillion, one hundred forty-five billion, four hundred eighty-nine million, four hundred thirty-six thousand".