621435346011 has 6 divisors (see below), whose sum is σ = 897628833140. Its totient is φ = 414290230668.

The previous prime is 621435345989. The next prime is 621435346067. The reversal of 621435346011 is 110643534126.

621435346011 is a `hidden beast` number, since 6 + 2 + 1 + 43 + 5 + 3 + 4 + 601 + 1 = 666.

621435346011 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 621435346011 - 2⁹ = 621435345499 is a prime.

It is a super-2 number, since 2×621435346011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (621435346211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34524185881 + ... + 34524185898.

Almost surely, 2^621435346011 is an apocalyptic number.

621435346011 is a deficient number, since it is larger than the sum of its proper divisors (276193487129).

621435346011 is a wasteful number, since it uses less digits than its factorization.

621435346011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69048371785 (or 69048371782 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 621435346011 in words is "six hundred twenty-one billion, four hundred thirty-five million, three hundred forty-six thousand, eleven".