10215235642 has 8 divisors (see below), whose sum is σ = 15323332500. Its totient is φ = 5107458144.

The previous prime is 10215235627. The next prime is 10215235651. The reversal of 10215235642 is 24653251201.

It can be written as a sum of positive squares in 2 ways, for example, as 7945761321 + 2269474321 = 89139^2 + 47639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30784 + ... + 146212.

Almost surely, 2^10215235642 is an apocalyptic number.

10215235642 is a deficient number, since it is larger than the sum of its proper divisors (5108096858).

10215235642 is a wasteful number, since it uses less digits than its factorization.

10215235642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159680.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 10215235642 its reverse (24653251201), we get a palindrome (34868486843).

The spelling of 10215235642 in words is "ten billion, two hundred fifteen million, two hundred thirty-five thousand, six hundred forty-two".