54129298891 has 2 divisors, whose sum is σ = 54129298892. Its totient is φ = 54129298890.

The previous prime is 54129298879. The next prime is 54129298907. The reversal of 54129298891 is 19889292145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54129298891 - 2¹¹ = 54129296843 is a prime.

It is not a weakly prime, because it can be changed into another prime (54129298801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27064649445 + 27064649446.

It is an arithmetic number, because the mean of its divisors is an integer number (27064649446).

Almost surely, 2^54129298891 is an apocalyptic number.

54129298891 is a deficient number, since it is larger than the sum of its proper divisors (1).

54129298891 is an equidigital number, since it uses as much as digits as its factorization.

54129298891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 58.

The spelling of 54129298891 in words is "fifty-four billion, one hundred twenty-nine million, two hundred ninety-eight thousand, eight hundred ninety-one".