39668754426 has 64 divisors (see below), whose sum is σ = 93282803712. Its totient is φ = 11008567872.

The previous prime is 39668754413. The next prime is 39668754427. The reversal of 39668754426 is 62445786693.

It is a super-2 number, since 2×39668754426² (a number of 22 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 39668754426.

It is not an unprimeable number, because it can be changed into a prime (39668754427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 890455 + ... + 933941.

It is an arithmetic number, because the mean of its divisors is an integer number (1457543808).

Almost surely, 2^39668754426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39668754426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46641401856).

39668754426 is an abundant number, since it is smaller than the sum of its proper divisors (53614049286).

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

39668754426 is a wasteful number, since it uses less digits than its factorization.

39668754426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44123.

The product of its digits is 52254720, while the sum is 60.

The spelling of 39668754426 in words is "thirty-nine billion, six hundred sixty-eight million, seven hundred fifty-four thousand, four hundred twenty-six".