126626378780 has 24 divisors (see below), whose sum is σ = 290089522800. Its totient is φ = 46045955840.

The previous prime is 126626378777. The next prime is 126626378803. The reversal of 126626378780 is 87873626621.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 287787005 + ... + 287787444.

It is an arithmetic number, because the mean of its divisors is an integer number (12087063450).

Almost surely, 2^126626378780 is an apocalyptic number.

126626378780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126626378780 is an abundant number, since it is smaller than the sum of its proper divisors (163463144020).

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

126626378780 is a wasteful number, since it uses less digits than its factorization.

126626378780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575574469 (or 575574467 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 126626378780 in words is "one hundred twenty-six billion, six hundred twenty-six million, three hundred seventy-eight thousand, seven hundred eighty".