126431671306993 has 16 divisors (see below), whose sum is σ = 140693210251776. Its totient is φ = 112825842750720.

The previous prime is 126431671306939. The next prime is 126431671307041. The reversal of 126431671306993 is 399603176134621.

It is a cyclic number.

It is not a de Polignac number, because 126431671306993 - 2¹⁷ = 126431671175921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126431671300993) 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, 160162171 + ... + 160949632.

It is an arithmetic number, because the mean of its divisors is an integer number (8793325640736).

Almost surely, 2^{126431671306993} is an apocalyptic number.

126431671306993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

126431671306993 is a deficient number, since it is larger than the sum of its proper divisors (14261538944783).

126431671306993 is a wasteful number, since it uses less digits than its factorization.

126431671306993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321112824.

The product of its (nonzero) digits is 26453952, while the sum is 61.

The spelling of 126431671306993 in words is "one hundred twenty-six trillion, four hundred thirty-one billion, six hundred seventy-one million, three hundred six thousand, nine hundred ninety-three".