2145529526400 has 1728 divisors, whose sum is σ = 8904348835200. Its totient is φ = 488816640000.

The previous prime is 2145529526351. The next prime is 2145529526411. The reversal of 2145529526400 is 46259255412.

2145529526400 is a `hidden beast` number, since 2 + 1 + 4 + 552 + 9 + 52 + 6 + 40 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 8547926275 + ... + 8547926525.

It is an arithmetic number, because the mean of its divisors is an integer number (5152979650).

Almost surely, 2^{2145529526400} is an apocalyptic number.

2145529526400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145529526400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4452174417600).

2145529526400 is an abundant number, since it is smaller than the sum of its proper divisors (6758819308800).

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

2145529526400 is a wasteful number, since it uses less digits than its factorization.

2145529526400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 2145529526400 in words is "two trillion, one hundred forty-five billion, five hundred twenty-nine million, five hundred twenty-six thousand, four hundred".