545637831157 has 2 divisors, whose sum is σ = 545637831158. Its totient is φ = 545637831156.

The previous prime is 545637831043. The next prime is 545637831161. The reversal of 545637831157 is 751138736545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 465398204401 + 80239626756 = 682201^2 + 283266^2 .

It is a cyclic number.

It is not a de Polignac number, because 545637831157 - 2¹⁵ = 545637798389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545637831098 and 545637831107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545637831757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272818915578 + 272818915579.

It is an arithmetic number, because the mean of its divisors is an integer number (272818915579).

Almost surely, 2^545637831157 is an apocalyptic number.

It is an amenable number.

545637831157 is a deficient number, since it is larger than the sum of its proper divisors (1).

545637831157 is an equidigital number, since it uses as much as digits as its factorization.

545637831157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584000, while the sum is 55.

The spelling of 545637831157 in words is "five hundred forty-five billion, six hundred thirty-seven million, eight hundred thirty-one thousand, one hundred fifty-seven".