2645028886032 has 320 divisors, whose sum is σ = 8305668403200. Its totient is φ = 801044328960.

The previous prime is 2645028886021. The next prime is 2645028886057. The reversal of 2645028886032 is 2306888205462.

It is a happy number.

2645028886032 is a `hidden beast` number, since 2 + 6 + 4 + 5 + 0 + 28 + 8 + 8 + 603 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2645028886032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126310219 + ... + 126331157.

It is an arithmetic number, because the mean of its divisors is an integer number (25955213760).

Almost surely, 2^{2645028886032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2645028886032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4152834201600).

2645028886032 is an abundant number, since it is smaller than the sum of its proper divisors (5660639517168).

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

2645028886032 is a wasteful number, since it uses less digits than its factorization.

2645028886032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21323 (or 21311 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 2645028886032 in words is "two trillion, six hundred forty-five billion, twenty-eight million, eight hundred eighty-six thousand, thirty-two".