126644484131 has 16 divisors (see below), whose sum is σ = 140075496288. Its totient is φ = 113533689600.

The previous prime is 126644484103. The next prime is 126644484139. The reversal of 126644484131 is 131484446621.

It is a cyclic number.

It is not a de Polignac number, because 126644484131 - 2³⁰ = 125570742307 is a prime.

It is a super-2 number, since 2×126644484131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126644484139) 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, 6025661 + ... + 6046641.

It is an arithmetic number, because the mean of its divisors is an integer number (8754718518).

Almost surely, 2^126644484131 is an apocalyptic number.

126644484131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

126644484131 is a deficient number, since it is larger than the sum of its proper divisors (13431012157).

126644484131 is a wasteful number, since it uses less digits than its factorization.

126644484131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28582.

The product of its digits is 442368, while the sum is 44.

The spelling of 126644484131 in words is "one hundred twenty-six billion, six hundred forty-four million, four hundred eighty-four thousand, one hundred thirty-one".