642610222410 has 64 divisors (see below), whose sum is σ = 1688128202880. Its totient is φ = 155587841280.

The previous prime is 642610222409. The next prime is 642610222421. The reversal of 642610222410 is 14222016246.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13482100 + ... + 13529679.

It is an arithmetic number, because the mean of its divisors is an integer number (26377003170).

Almost surely, 2^642610222410 is an apocalyptic number.

642610222410 is an abundant number, since it is smaller than the sum of its proper divisors (1045517980470).

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

642610222410 is a wasteful number, since it uses less digits than its factorization.

642610222410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27011863.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 642610222410 its reverse (14222016246), we get a palindrome (656832238656).

The spelling of 642610222410 in words is "six hundred forty-two billion, six hundred ten million, two hundred twenty-two thousand, four hundred ten".