126390051109 has 16 divisors (see below), whose sum is σ = 145320721920. Its totient is φ = 107678686320.

The previous prime is 126390051103. The next prime is 126390051119. The reversal of 126390051109 is 901150093621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 126390051109 - 2³ = 126390051101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126390051101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2787994 + ... + 2832964.

It is an arithmetic number, because the mean of its divisors is an integer number (9082545120).

Almost surely, 2^126390051109 is an apocalyptic number.

It is an amenable number.

126390051109 is a deficient number, since it is larger than the sum of its proper divisors (18930670811).

126390051109 is a wasteful number, since it uses less digits than its factorization.

126390051109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47400.

The product of its (nonzero) digits is 14580, while the sum is 37.

The spelling of 126390051109 in words is "one hundred twenty-six billion, three hundred ninety million, fifty-one thousand, one hundred nine".