126311274936 has 640 divisors, whose sum is σ = 459614453760. Its totient is φ = 31450809600.

The previous prime is 126311274899. The next prime is 126311274937. The reversal of 126311274936 is 639472113621.

126311274936 is a `hidden beast` number, since 1 + 2 + 6 + 31 + 127 + 493 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 126311274891 and 126311274900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126311274937) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 196440231 + ... + 196440873.

It is an arithmetic number, because the mean of its divisors is an integer number (718147584).

Almost surely, 2^126311274936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126311274936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229807226880).

126311274936 is an abundant number, since it is smaller than the sum of its proper divisors (333303178824).

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

126311274936 is a wasteful number, since it uses less digits than its factorization.

126311274936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 824 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The spelling of 126311274936 in words is "one hundred twenty-six billion, three hundred eleven million, two hundred seventy-four thousand, nine hundred thirty-six".