126487749890 has 16 divisors (see below), whose sum is σ = 227693203200. Its totient is φ = 50591710320.

The previous prime is 126487749851. The next prime is 126487749893. The reversal of 126487749890 is 98947784621.

It is not an unprimeable number, because it can be changed into a prime (126487749893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264116 + ... + 568095.

It is an arithmetic number, because the mean of its divisors is an integer number (14230825200).

Almost surely, 2^126487749890 is an apocalyptic number.

126487749890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126487749890 is a deficient number, since it is larger than the sum of its proper divisors (101205453310).

126487749890 is a wasteful number, since it uses less digits than its factorization.

126487749890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847417.

The product of its (nonzero) digits is 48771072, while the sum is 65.

The spelling of 126487749890 in words is "one hundred twenty-six billion, four hundred eighty-seven million, seven hundred forty-nine thousand, eight hundred ninety".