126319437606 has 64 divisors (see below), whose sum is σ = 255839109120. Its totient is φ = 41577541920.

The previous prime is 126319437593. The next prime is 126319437619. The reversal of 126319437606 is 606734913621.

It is an interprime number because it is at equal distance from previous prime (126319437593) and next prime (126319437619).

It is a super-2 number, since 2×126319437606² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175687315 + ... + 175688033.

It is an arithmetic number, because the mean of its divisors is an integer number (3997486080).

Almost surely, 2^126319437606 is an apocalyptic number.

126319437606 is an abundant number, since it is smaller than the sum of its proper divisors (129519671514).

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

126319437606 is a wasteful number, since it uses less digits than its factorization.

126319437606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 126319437606 in words is "one hundred twenty-six billion, three hundred nineteen million, four hundred thirty-seven thousand, six hundred six".