126801253844 has 6 divisors (see below), whose sum is σ = 221902194234. Its totient is φ = 63400626920.

The previous prime is 126801253823. The next prime is 126801253849. The reversal of 126801253844 is 448352108621.

It can be written as a sum of positive squares in only one way, i.e., 124905696400 + 1895557444 = 353420^2 + 43538^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126801253795 and 126801253804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126801253849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15850156727 + ... + 15850156734.

It is an arithmetic number, because the mean of its divisors is an integer number (36983699039).

Almost surely, 2^126801253844 is an apocalyptic number.

It is an amenable number.

126801253844 is a deficient number, since it is larger than the sum of its proper divisors (95100940390).

126801253844 is a wasteful number, since it uses less digits than its factorization.

126801253844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31700313465 (or 31700313463 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 126801253844 in words is "one hundred twenty-six billion, eight hundred one million, two hundred fifty-three thousand, eight hundred forty-four".