621313603155254 has 16 divisors (see below), whose sum is σ = 939060910982592. Its totient is φ = 308298880374408.

The previous prime is 621313603155197. The next prime is 621313603155277. The reversal of 621313603155254 is 452551306313126.

It is a junction number, because it is equal to n+sod(n) for n = 621313603155199 and 621313603155208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1394996924 + ... + 1395442239.

It is an arithmetic number, because the mean of its divisors is an integer number (58691306936412).

Almost surely, 2^{621313603155254} is an apocalyptic number.

621313603155254 is a deficient number, since it is larger than the sum of its proper divisors (317747307827338).

621313603155254 is a wasteful number, since it uses less digits than its factorization.

621313603155254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790440011.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 621313603155254 in words is "six hundred twenty-one trillion, three hundred thirteen billion, six hundred three million, one hundred fifty-five thousand, two hundred fifty-four".