9913658426 has 16 divisors (see below), whose sum is σ = 17994540096. Its totient is φ = 3998786496.

The previous prime is 9913658411. The next prime is 9913658453. The reversal of 9913658426 is 6248563199.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20826776 + ... + 20827251.

It is an arithmetic number, because the mean of its divisors is an integer number (1124658756).

Almost surely, 2^9913658426 is an apocalyptic number.

9913658426 is a deficient number, since it is larger than the sum of its proper divisors (8080881670).

9913658426 is a wasteful number, since it uses less digits than its factorization.

9913658426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41654053.

The product of its digits is 2799360, while the sum is 53.

The square root of 9913658426 is about 99567.3562268277. The cubic root of 9913658426 is about 2148.2161822780.

The spelling of 9913658426 in words is "nine billion, nine hundred thirteen million, six hundred fifty-eight thousand, four hundred twenty-six".