1621060013026 has 8 divisors (see below), whose sum is σ = 2559568441680. Its totient is φ = 767870532468.

The previous prime is 1621060013021. The next prime is 1621060013033. The reversal of 1621060013026 is 6203100601261.

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

It is a junction number, because it is equal to n+sod(n) for n = 1621060012985 and 1621060013003.

It is not an unprimeable number, because it can be changed into a prime (1621060013021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21329736976 + ... + 21329737051.

It is an arithmetic number, because the mean of its divisors is an integer number (319946055210).

Almost surely, 2^{1621060013026} is an apocalyptic number.

1621060013026 is a deficient number, since it is larger than the sum of its proper divisors (938508428654).

1621060013026 is a wasteful number, since it uses less digits than its factorization.

1621060013026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42659474048.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 1621060013026 its reverse (6203100601261), we get a palindrome (7824160614287).

The spelling of 1621060013026 in words is "one trillion, six hundred twenty-one billion, sixty million, thirteen thousand, twenty-six".