551657126387 has 2 divisors, whose sum is σ = 551657126388. Its totient is φ = 551657126386.

The previous prime is 551657126347. The next prime is 551657126483. The reversal of 551657126387 is 783621756155.

551657126387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551657126387 - 2⁶ = 551657126323 is a prime.

It is not a weakly prime, because it can be changed into another prime (551657126347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275828563193 + 275828563194.

It is an arithmetic number, because the mean of its divisors is an integer number (275828563194).

Almost surely, 2^551657126387 is an apocalyptic number.

551657126387 is a deficient number, since it is larger than the sum of its proper divisors (1).

551657126387 is an equidigital number, since it uses as much as digits as its factorization.

551657126387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584000, while the sum is 56.

The spelling of 551657126387 in words is "five hundred fifty-one billion, six hundred fifty-seven million, one hundred twenty-six thousand, three hundred eighty-seven".