1621032426430 has 8 divisors (see below), whose sum is σ = 2917858367592. Its totient is φ = 648412970568.

The previous prime is 1621032426397. The next prime is 1621032426443. The reversal of 1621032426430 is 346242301261.

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

It is a super-2 number, since 2×1621032426430² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 81051621312 + ... + 81051621331.

It is an arithmetic number, because the mean of its divisors is an integer number (364732295949).

Almost surely, 2^{1621032426430} is an apocalyptic number.

1621032426430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1621032426430 is a deficient number, since it is larger than the sum of its proper divisors (1296825941162).

1621032426430 is a wasteful number, since it uses less digits than its factorization.

1621032426430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162103242650.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 1621032426430 its reverse (346242301261), we get a palindrome (1967274727691).

The spelling of 1621032426430 in words is "one trillion, six hundred twenty-one billion, thirty-two million, four hundred twenty-six thousand, four hundred thirty".