1621426424430 has 16 divisors (see below), whose sum is σ = 3891423418704. Its totient is φ = 432380379840.

The previous prime is 1621426424407. The next prime is 1621426424437. The reversal of 1621426424430 is 344246241261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1621426424437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27023773711 + ... + 27023773770.

It is an arithmetic number, because the mean of its divisors is an integer number (243213963669).

Almost surely, 2^{1621426424430} is an apocalyptic number.

1621426424430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1621426424430 is an abundant number, since it is smaller than the sum of its proper divisors (2269996994274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1621426424430 is a wasteful number, since it uses less digits than its factorization.

1621426424430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54047547491.

The product of its (nonzero) digits is 221184, while the sum is 39.

The spelling of 1621426424430 in words is "one trillion, six hundred twenty-one billion, four hundred twenty-six million, four hundred twenty-four thousand, four hundred thirty".