7621913420586 has 12 divisors (see below), whose sum is σ = 16514145744642. Its totient is φ = 2540637806856.

The previous prime is 7621913420579. The next prime is 7621913420599. The reversal of 7621913420586 is 6850243191267.

It is a happy number.

7621913420586 is a `hidden beast` number, since 7 + 6 + 2 + 1 + 9 + 1 + 34 + 20 + 586 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5062972511025 + 2558940909561 = 2250105^2 + 1599669^2 .

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 5 ways as a sum of consecutive naturals, for example, 211719817221 + ... + 211719817256.

It is a 1-persistent number, because it is pandigital, but 2⋅7621913420586 = 15243826841172 is not.

Almost surely, 2^{7621913420586} is an apocalyptic number.

7621913420586 is an abundant number, since it is smaller than the sum of its proper divisors (8892232324056).

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

7621913420586 is a wasteful number, since it uses less digits than its factorization.

7621913420586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423439634485 (or 423439634482 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 7621913420586 in words is "seven trillion, six hundred twenty-one billion, nine hundred thirteen million, four hundred twenty thousand, five hundred eighty-six".