126409037629 has 4 divisors (see below), whose sum is σ = 144467471584. Its totient is φ = 108350603676.

The previous prime is 126409037609. The next prime is 126409037659. The reversal of 126409037629 is 926730904621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 126409037629 - 2¹⁷ = 126408906557 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 (126409037609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9029216967 + ... + 9029216980.

It is an arithmetic number, because the mean of its divisors is an integer number (36116867896).

Almost surely, 2^126409037629 is an apocalyptic number.

It is an amenable number.

126409037629 is a deficient number, since it is larger than the sum of its proper divisors (18058433955).

126409037629 is an equidigital number, since it uses as much as digits as its factorization.

126409037629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18058433954.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 126409037629 in words is "one hundred twenty-six billion, four hundred nine million, thirty-seven thousand, six hundred twenty-nine".