126390052551 has 16 divisors (see below), whose sum is σ = 202730912000. Its totient is φ = 68421682368.

The previous prime is 126390052543. The next prime is 126390052577. The reversal of 126390052551 is 155250093621.

It is not a de Polignac number, because 126390052551 - 2³ = 126390052543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126390052051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158383126 + ... + 158383923.

It is an arithmetic number, because the mean of its divisors is an integer number (12670682000).

Almost surely, 2^126390052551 is an apocalyptic number.

126390052551 is a deficient number, since it is larger than the sum of its proper divisors (76340859449).

126390052551 is a wasteful number, since it uses less digits than its factorization.

126390052551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316767078.

The product of its (nonzero) digits is 81000, while the sum is 39.

The spelling of 126390052551 in words is "one hundred twenty-six billion, three hundred ninety million, fifty-two thousand, five hundred fifty-one".