622645142251002 has 32 divisors (see below), whose sum is σ = 1341116548551360. Its totient is φ = 191578163020800.

The previous prime is 622645142250983. The next prime is 622645142251003. The reversal of 622645142251002 is 200152241546226.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (622645142251003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100250727 + ... + 106280282.

It is an arithmetic number, because the mean of its divisors is an integer number (41909892142230).

Almost surely, 2^{622645142251002} is an apocalyptic number.

622645142251002 is an abundant number, since it is smaller than the sum of its proper divisors (718471406300358).

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

622645142251002 is a wasteful number, since it uses less digits than its factorization.

622645142251002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206569678.

The product of its (nonzero) digits is 460800, while the sum is 42.

Adding to 622645142251002 its reverse (200152241546226), we get a palindrome (822797383797228).

The spelling of 622645142251002 in words is "six hundred twenty-two trillion, six hundred forty-five billion, one hundred forty-two million, two hundred fifty-one thousand, two".