126311968620 has 288 divisors, whose sum is σ = 404195151360. Its totient is φ = 33105231360.

The previous prime is 126311968619. The next prime is 126311968703. The reversal of 126311968620 is 26869113621.

126311968620 is a `hidden beast` number, since 1 + 2 + 6 + 3 + 1 + 19 + 6 + 8 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 155748015 + ... + 155748825.

Almost surely, 2^126311968620 is an apocalyptic number.

126311968620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126311968620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202097575680).

126311968620 is an abundant number, since it is smaller than the sum of its proper divisors (277883182740).

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

126311968620 is a wasteful number, since it uses less digits than its factorization.

126311968620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 126311968620 in words is "one hundred twenty-six billion, three hundred eleven million, nine hundred sixty-eight thousand, six hundred twenty".