8419061620 has 24 divisors (see below), whose sum is σ = 17707382784. Its totient is φ = 3362414496.

The previous prime is 8419061617. The next prime is 8419061621. The reversal of 8419061620 is 261609148.

It is a happy number.

It is a super-2 number, since 2×8419061620² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8419061620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8419061621) 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, 312372 + ... + 338251.

It is an arithmetic number, because the mean of its divisors is an integer number (737807616).

Almost surely, 2^8419061620 is an apocalyptic number.

It is an amenable number.

8419061620 is an abundant number, since it is smaller than the sum of its proper divisors (9288321164).

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

8419061620 is a wasteful number, since it uses less digits than its factorization.

8419061620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651279 (or 651277 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 8419061620 is about 91755.4446340924. Note that the first 3 decimals coincide. The cubic root of 8419061620 is about 2034.3291838435.

The spelling of 8419061620 in words is "eight billion, four hundred nineteen million, sixty-one thousand, six hundred twenty".