126888550890 has 64 divisors (see below), whose sum is σ = 308425055616. Its totient is φ = 33406779392.

The previous prime is 126888550889. The next prime is 126888550939. The reversal of 126888550890 is 98055888621.

It is a super-2 number, since 2×126888550890² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 798409 + ... + 944051.

It is an arithmetic number, because the mean of its divisors is an integer number (4819141494).

Almost surely, 2^126888550890 is an apocalyptic number.

126888550890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126888550890 is an abundant number, since it is smaller than the sum of its proper divisors (181536504726).

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

126888550890 is a wasteful number, since it uses less digits than its factorization.

126888550890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146023.

The product of its (nonzero) digits is 11059200, while the sum is 60.

The spelling of 126888550890 in words is "one hundred twenty-six billion, eight hundred eighty-eight million, five hundred fifty thousand, eight hundred ninety".