2643652433628 has 72 divisors (see below), whose sum is σ = 7081115513472. Its totient is φ = 828741445632.

The previous prime is 2643652433623. The next prime is 2643652433633. The reversal of 2643652433628 is 8263342563462.

2643652433628 is a `hidden beast` number, since 2 + 6 + 4 + 3 + 6 + 5 + 2 + 4 + 3 + 3 + 628 = 666.

It is an interprime number because it is at equal distance from previous prime (2643652433623) and next prime (2643652433633).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643652433621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 871500 + ... + 2459027.

It is an arithmetic number, because the mean of its divisors is an integer number (98348826576).

Almost surely, 2^{2643652433628} is an apocalyptic number.

It is an amenable number.

2643652433628 is an abundant number, since it is smaller than the sum of its proper divisors (4437463079844).

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

2643652433628 is a wasteful number, since it uses less digits than its factorization.

2643652433628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331851 (or 3331846 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 54.

The spelling of 2643652433628 in words is "two trillion, six hundred forty-three billion, six hundred fifty-two million, four hundred thirty-three thousand, six hundred twenty-eight".