126903661688 has 8 divisors (see below), whose sum is σ = 237944365680. Its totient is φ = 63451830840.

The previous prime is 126903661681. The next prime is 126903661697. The reversal of 126903661688 is 886166309621.

It is a happy number.

126903661688 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×126903661688² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126903661681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7931478848 + ... + 7931478863.

It is an arithmetic number, because the mean of its divisors is an integer number (29743045710).

Almost surely, 2^126903661688 is an apocalyptic number.

It is an amenable number.

126903661688 is a deficient number, since it is larger than the sum of its proper divisors (111040703992).

126903661688 is a wasteful number, since it uses less digits than its factorization.

126903661688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15862957717 (or 15862957713 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 126903661688 in words is "one hundred twenty-six billion, nine hundred three million, six hundred sixty-one thousand, six hundred eighty-eight".