126537447471 has 24 divisors (see below), whose sum is σ = 180366650640. Its totient is φ = 78890253312.

The previous prime is 126537447461. The next prime is 126537447479. The reversal of 126537447471 is 174744735621.

It is not a de Polignac number, because 126537447471 - 2⁷ = 126537447343 is a prime.

It is a super-3 number, since 3×126537447471³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126537447479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328686 + ... + 600923.

It is an arithmetic number, because the mean of its divisors is an integer number (7515277110).

Almost surely, 2^126537447471 is an apocalyptic number.

126537447471 is a deficient number, since it is larger than the sum of its proper divisors (53829203169).

126537447471 is a wasteful number, since it uses less digits than its factorization.

126537447471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929803 (or 929786 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 51.

The spelling of 126537447471 in words is "one hundred twenty-six billion, five hundred thirty-seven million, four hundred forty-seven thousand, four hundred seventy-one".