126275998950 has 120 divisors (see below), whose sum is σ = 352525431720. Its totient is φ = 33513782400.

The previous prime is 126275998931. The next prime is 126275998973. The reversal of 126275998950 is 59899572621.

126275998950 is a `hidden beast` number, since 12 + 6 + 27 + 599 + 8 + 9 + 5 + 0 = 666.

It is a super-2 number, since 2×126275998950² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 780666 + ... + 928434.

It is an arithmetic number, because the mean of its divisors is an integer number (2937711931).

Almost surely, 2^126275998950 is an apocalyptic number.

126275998950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126275998950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176262715860).

126275998950 is an abundant number, since it is smaller than the sum of its proper divisors (226249432770).

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

126275998950 is a wasteful number, since it uses less digits than its factorization.

126275998950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148004 (or 147990 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 63.

The spelling of 126275998950 in words is "one hundred twenty-six billion, two hundred seventy-five million, nine hundred ninety-eight thousand, nine hundred fifty".