10621404755618 has 16 divisors (see below), whose sum is σ = 16624948498560. Its totient is φ = 5079759174336.

The previous prime is 10621404755617. The next prime is 10621404755653. The reversal of 10621404755618 is 81655740412601.

It is a super-2 number, since 2×10621404755618² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10621404755617) by changing a digit.

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, 4877546 + ... + 6710682.

It is an arithmetic number, because the mean of its divisors is an integer number (1039059281160).

Almost surely, 2^{10621404755618} is an apocalyptic number.

10621404755618 is a deficient number, since it is larger than the sum of its proper divisors (6003543742942).

10621404755618 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 10621404755618 = (41541627816005)₉.

10621404755618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959121.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 10621404755618 in words is "ten trillion, six hundred twenty-one billion, four hundred four million, seven hundred fifty-five thousand, six hundred eighteen".