642034225090 has 32 divisors (see below), whose sum is σ = 1195615280880. Its totient is φ = 247936625664.

The previous prime is 642034225087. The next prime is 642034225093. The reversal of 642034225090 is 90522430246.

It is an interprime number because it is at equal distance from previous prime (642034225087) and next prime (642034225093).

It can be written as a sum of positive squares in 8 ways, for example, as 29457200161 + 612577024929 = 171631^2 + 782673^2 .

It is not an unprimeable number, because it can be changed into a prime (642034225093) 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, 3499894 + ... + 3678766.

Almost surely, 2^642034225090 is an apocalyptic number.

642034225090 is a deficient number, since it is larger than the sum of its proper divisors (553581055790).

642034225090 is a wasteful number, since it uses less digits than its factorization.

642034225090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191286.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 642034225090 in words is "six hundred forty-two billion, thirty-four million, two hundred twenty-five thousand, ninety".