126745963990 has 32 divisors (see below), whose sum is σ = 241538461920. Its totient is φ = 47752406784.

The previous prime is 126745963957. The next prime is 126745964003. The reversal of 126745963990 is 99369547621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1895119 + ... + 1960858.

It is an arithmetic number, because the mean of its divisors is an integer number (7548076935).

Almost surely, 2^126745963990 is an apocalyptic number.

126745963990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126745963990 is a deficient number, since it is larger than the sum of its proper divisors (114792497930).

126745963990 is a wasteful number, since it uses less digits than its factorization.

126745963990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856176.

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 126745963990 in words is "one hundred twenty-six billion, seven hundred forty-five million, nine hundred sixty-three thousand, nine hundred ninety".