10251421544642 has 8 divisors (see below), whose sum is σ = 15425640621756. Its totient is φ = 5109541337392.

The previous prime is 10251421544627. The next prime is 10251421544737. The reversal of 10251421544642 is 24644512415201.

It can be written as a sum of positive squares in 2 ways, for example, as 9123728343601 + 1127693201041 = 3020551^2 + 1061929^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 10251421544642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8084716673 + ... + 8084717940.

Almost surely, 2^{10251421544642} is an apocalyptic number.

10251421544642 is a deficient number, since it is larger than the sum of its proper divisors (5174219077114).

10251421544642 is a wasteful number, since it uses less digits than its factorization.

10251421544642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16169434932.

The product of its (nonzero) digits is 307200, while the sum is 41.

Adding to 10251421544642 its reverse (24644512415201), we get a palindrome (34895933959843).

The spelling of 10251421544642 in words is "ten trillion, two hundred fifty-one billion, four hundred twenty-one million, five hundred forty-four thousand, six hundred forty-two".