126338538801 has 32 divisors (see below), whose sum is σ = 188150376960. Its totient is φ = 74937989376.

The previous prime is 126338538797. The next prime is 126338538817. The reversal of 126338538801 is 108835833621.

It is not a de Polignac number, because 126338538801 - 2² = 126338538797 is a prime.

It is a super-2 number, since 2×126338538801² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126338538401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312930 + ... + 592116.

It is an arithmetic number, because the mean of its divisors is an integer number (5879699280).

Almost surely, 2^126338538801 is an apocalyptic number.

It is an amenable number.

126338538801 is a deficient number, since it is larger than the sum of its proper divisors (61811838159).

126338538801 is a wasteful number, since it uses less digits than its factorization.

126338538801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279693.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 126338538801 in words is "one hundred twenty-six billion, three hundred thirty-eight million, five hundred thirty-eight thousand, eight hundred one".